{"id":48742,"date":"2025-07-30T13:12:48","date_gmt":"2025-07-30T05:12:48","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/48742.html"},"modified":"2025-07-30T13:12:48","modified_gmt":"2025-07-30T05:12:48","slug":"%e4%bb%8e%e6%96%87%e4%bb%b6%e5%b0%8f%e7%99%bd%e5%88%b0io%e5%a4%a7%e4%be%a0%ef%bc%9ac%e8%af%ad%e8%a8%80%e6%96%87%e4%bb%b6%e6%93%8d%e4%bd%9c%e5%85%a8%e6%94%bb","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/48742.html","title":{"rendered":"\u4ece\u201c\u6587\u4ef6\u5c0f\u767d\u201c\u5230\u201cIO\u5927\u4fa0\u201c\uff1aC\u8bed\u8a00\u6587\u4ef6\u64cd\u4f5c\u5168\u653b\u7565"},"content":{"rendered":"<\/p>\n<h4>\u4ece&#034;\u6587\u4ef6\u5c0f\u767d&#034;\u5230&#034;IO\u5927\u4fa0&#034;&#xff1a;C\u8bed\u8a00\u6587\u4ef6\u64cd\u4f5c\u5168\u653b\u7565<\/h4>\n<ul>\n<li>\u524d\u8a00<\/li>\n<li>\u76ee\u5f55<\/li>\n<li>\u4e00\u3001\u4e3a\u4ec0\u4e48\u4f7f\u7528\u6587\u4ef6<\/li>\n<li>\u4e8c\u3001\u4ec0\u4e48\u662f\u6587\u4ef6<\/li>\n<li>\n<ul>\n<li>1\u3001\u7a0b\u5e8f\u6587\u4ef6<\/li>\n<li>2\u3001\u6570\u636e\u6587\u4ef6<\/li>\n<li>3\u3001\u6587\u4ef6\u540d<\/li>\n<\/ul>\n<\/li>\n<li>\u4e09\u3001\u4e8c\u8fdb\u5236\u6587\u4ef6\u548c\u6587\u672c\u6587\u4ef6&#xff1f;<\/li>\n<li>\u56db\u3001\u6587\u4ef6\u7684\u6253\u5f00\u548c\u5173\u95ed<\/li>\n<li>\n<ul>\n<li>1\u3001\u6587\u4ef6\u7684\u6253\u5f00<\/li>\n<li>\n<ul>\n<li>1&#xff09;\u6587\u4ef6\u7684\u6253\u5f00\u5f62\u5f0f<\/li>\n<li>2&#xff09;\u68c0\u6d4bfopen\u8fd4\u56de\u503c\u7684\u6709\u6548\u6027<\/li>\n<li>3&#xff09;\u76f8\u5bf9\u8def\u5f84\u4e0e\u7edd\u5bf9\u8def\u5f84<\/li>\n<li>\n<ul>\n<li>\u76f8\u5bf9\u8def\u5f84<\/li>\n<li>\u7edd\u5bf9\u8def\u5f84<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li>2\u3001\u6587\u4ef6\u7684\u5173\u95ed<\/li>\n<\/ul>\n<\/li>\n<li>\u4e94\u3001\u6587\u4ef6\u7684\u987a\u5e8f\u8bfb\u5199<\/li>\n<li>\n<ul>\n<li>1\u3001\u987a\u5e8f\u8bfb\u5199\u7684\u4ecb\u7ecd<\/li>\n<li>\n<ul>\n<li>fput\u4e0efget<\/li>\n<li>fputs\u4e0efgets<\/li>\n<li>fprintf\u4e0efcanf<\/li>\n<li>fwrite\u4e0efread<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li>\u516d\u3001\u6587\u4ef6\u7684\u968f\u673a\u8bfb\u5199<\/li>\n<li>\n<ul>\n<li>**1\u3001\u6838\u5fc3\u51fd\u6570&#xff1a;\u6587\u4ef6\u968f\u673a\u8bfb\u5199\u4e09\u5251\u5ba2**<\/li>\n<li>\n<ul>\n<li>**1&#xff09; 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\u6b22\u8fce\u6765\u5230C\u8bed\u8a00\u6587\u4ef6\u64cd\u4f5c\u7684\u5947\u5999\u4e16\u754c&#xff01;\u5728\u8fd9\u91cc&#xff0c;\u4f60\u5c06\u5b66\u4f1a\u5982\u4f55\u7528\u4ee3\u7801&#034;\u521b\u9020\u5b87\u5b99&#034;&#xff08;\u65b0\u5efa\u6587\u4ef6&#xff09;\u3001\u201c\u65f6\u7a7a\u7a7f\u68ad\u201d&#xff08;\u8bfb\u5199\u6570\u636e&#xff09;&#xff0c;\u751a\u81f3&#034;\u590d\u6d3b\u4ea1\u7075&#034;&#xff08;\u6062\u590d\u8bef\u5220\u6587\u4ef6&#xff09;\u3002\u522b\u62c5\u5fc3&#xff0c;\u672c\u6559\u7a0b\u4e0d\u4f1a\u8ba9\u4f60\u7684\u7a0b\u5e8f\u50cf\u521d\u604b\u4e00\u6837\u6bb5\u9519\u8bef&#xff0c;\u800c\u662f\u5e26\u4f60\u4ecefopen()\u5230fseek()&#xff0c;\u4e00\u6b65\u6b65\u6210\u4e3a\u6587\u4ef6\u64cd\u4f5c\u754c\u7684&#034;\u626b\u5730\u50e7&#034;\u3002<\/p>\n<p>\u53cb\u60c5\u63d0\u793a&#xff1a;\u9605\u8bfb\u524d\u8bf7\u5907\u4efd\u4f60\u7684\u6587\u4ef6\u2014\u2014\u6bd5\u7adf&#xff0c;rm -rf\u7684\u60b2\u5267\u603b\u662f\u4ece\u81ea\u4fe1\u6ee1\u6ee1\u5f00\u59cb\u7684\u3002&#034;<\/p>\n<hr 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\u4f46\u662f\u5728\u7a0b\u5e8f\u8bbe\u8ba1\u4e2d&#xff0c;\u6211\u4eec\u2f00\u822c\u8c08\u7684\u2f42\u4ef6\u6709\u4e24\u79cd&#xff1a;\u7a0b\u5e8f\u6587\u4ef6\u3001\u6570\u636e\u6587\u4ef6&#xff08;\u4ece\u2f42\u4ef6\u529f\u80fd\u7684\u2ec6\u5ea6\u6765\u5206\u7c7b\u7684&#xff09;\u3002<\/p>\n<h3>1\u3001\u7a0b\u5e8f\u6587\u4ef6<\/h3>\n<p>\u7a0b\u5e8f\u6587\u4ef6\u5305\u62ec\u6e90\u7a0b\u5e8f\u6587\u4ef6&#xff08;\u540e\u7f00\u4e3a**.c **&#xff09;,\u76ee\u6807\u2f42\u4ef6&#xff08;windows\u73af\u5883\u540e\u7f00\u4e3a.obj&#xff09;,\u53ef\u6267\u884c\u7a0b\u5e8f&#xff08;windows\u73af\u5883\u540e\u7f00\u4e3a.exe&#xff09;\u3002<\/p>\n<h3>2\u3001\u6570\u636e\u6587\u4ef6<\/h3>\n<p>\u2f42\u4ef6\u7684\u5185\u5bb9\u4e0d\u2f00\u5b9a\u662f\u7a0b\u5e8f&#xff0c;\u2f7d\u662f\u7a0b\u5e8f\u8fd0\u884c\u65f6\u8bfb\u5199\u7684\u6570\u636e&#xff0c;\u2f50\u5982\u7a0b\u5e8f\u8fd0\u884c\u9700\u8981\u4ece\u4e2d\u8bfb\u53d6\u6570\u636e\u7684\u6587\u4ef6&#xff0c;\u6216\u8005\u8f93\u51fa\u5185\u5bb9\u7684\u6587\u4ef6\u3002<\/p>\n<p>\u672c\u7ae0\u8ba8\u8bba\u7684\u662f\u6570\u636e\u2f42\u4ef6\u3002<\/p>\n<p>\u5728\u4ee5\u524d\u5404\u7ae0\u6240\u5904\u7406\u6570\u636e\u7684\u8f93\u2f0a\u8f93\u51fa\u90fd\u662f\u4ee5\u7ec8\u7aef\u4e3a\u5bf9\u8c61\u7684&#xff0c;\u5373\u4ece\u7ec8\u7aef\u7684\u952e\u76d8\u8f93\u2f0a\u6570\u636e&#xff0c;\u8fd0\u884c\u7ed3\u679c\u663e\u2f70\u5230\u663e\u793a\u5668\u4e0a\u3002\u5176\u5b9e\u6709\u65f6\u5019\u6211\u4eec\u4f1a\u628a\u4fe1\u606f\u8f93\u51fa\u5230\u78c1\u76d8\u4e0a&#xff0c;\u5f53\u9700\u8981\u7684\u65f6\u5019\u518d\u4ece\u78c1\u76d8\u4e0a\u628a\u6570\u636e\u8bfb\u53d6\u5230\u5185\u5b58\u4e2d\u4f7f\u7528&#xff0c;\u8fd9\u2fa5\u5904\u7406\u7684\u5c31\u662f\u78c1\u76d8\u4e0a\u6587\u4ef6\u3002<\/p>\n<h3>3\u3001\u6587\u4ef6\u540d<\/h3>\n<p>\u2f00\u4e2a\u6587\u4ef6\u8981\u6709\u2f00\u4e2a\u552f\u2f00\u7684\u6587\u4ef6\u6807\u8bc6&#xff0c;\u4ee5\u4fbf\u7528\u6237\u8bc6\u522b\u548c\u5f15\u7528\u3002 \u2f42\u4ef6\u540d\u5305\u542b3\u90e8\u5206&#xff1a;\u2f42\u4ef6\u8def\u5f84&#043;\u2f42\u4ef6\u540d\u4e3b\u2f32&#043;\u6587\u4ef6\u540e\u7f00 \u4f8b\u5982&#xff1a; c:\\\\code\\\\test.txt \u4e3a\u4e86\u65b9\u4fbf\u8d77\u89c1&#xff0c;\u6587\u4ef6\u6807\u8bc6\u5e38\u88ab\u79f0\u4e3a\u6587\u4ef6\u540d\u3002<\/p>\n<h2>\u4e09\u3001\u4e8c\u8fdb\u5236\u6587\u4ef6\u548c\u6587\u672c\u6587\u4ef6&#xff1f;<\/h2>\n<p>\u6839\u636e\u6570\u636e\u7684\u7ec4\u7ec7\u5f62\u5f0f&#xff0c;\u6570\u636e\u6587\u4ef6\u88ab\u79f0\u4e3a\u6587\u672c\u6587\u4ef6\u6216\u8005\u2f06\u8fdb\u5236\u6587\u4ef6\u3002 \u6570\u636e\u5728\u5185\u5b58\u4e2d\u4ee5\u2f06\u8fdb\u5236\u7684\u5f62\u5f0f\u5b58\u50a8&#xff0c;\u5982\u679c\u4e0d\u52a0\u8f6c\u6362\u7684\u8f93\u51fa\u5230\u5916\u5b58\u7684\u2f42\u4ef6\u4e2d&#xff0c;\u5c31\u662f\u4e8c\u8fdb\u5236\u6587\u4ef6\u3002 \u5982\u679c\u8981\u6c42\u5728\u5916\u5b58\u4e0a\u4ee5ASCII\u7801\u7684\u5f62\u5f0f\u5b58\u50a8&#xff0c;\u5219\u9700\u8981\u5728\u5b58\u50a8\u524d\u8f6c\u6362\u3002\u4ee5ASCII\u5b57\u7b26\u7684\u5f62\u5f0f\u5b58\u50a8\u7684\u6587\u4ef6\u5c31\u662f\u6587\u672c\u6587\u4ef6\u3002 \u2f00\u4e2a\u6570\u636e\u5728\u6587\u4ef6\u4e2d\u662f\u600e\u4e48\u5b58\u50a8\u7684\u5462&#xff1f; \u5b57\u7b26\u2f00\u5f8b\u4ee5ASCII\u5f62\u5f0f\u5b58\u50a8&#xff0c;\u6570\u503c\u578b\u6570\u636e\u65e2\u53ef\u4ee5\u2f64ASCII\u5f62\u5f0f\u5b58\u50a8&#xff0c;\u4e5f\u53ef\u4ee5\u4f7f\u7528\u4e8c\u8fdb\u5236\u5f62\u5f0f\u5b58\u50a8\u3002 \u5982\u6709\u6574\u657010000&#xff0c;\u5982\u679c\u4ee5ASCII\u7801\u7684\u5f62\u5f0f\u8f93\u51fa\u5230\u78c1\u76d8&#xff0c;\u5219\u78c1\u76d8\u4e2d\u5360\u75285\u4e2a\u5b57\u8282&#xff08;\u6bcf\u4e2a\u5b57\u7b26\u2f00\u4e2a\u5b57\u8282&#xff09;&#xff0c;\u800c\u2f06\u8fdb\u5236\u5f62\u5f0f\u8f93\u51fa&#xff0c;\u5219\u5728\u78c1\u76d8\u4e0a\u53ea\u53604\u4e2a\u5b57\u8282\u3002 <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/07\/20250730051244-6889a9cc6d365.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;stdio.h&gt;<\/span><\/span><br \/>\n<span class=\"token keyword\">int<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token keyword\">int<\/span> a <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">10000<\/span><span class=\"token punctuation\">;<\/span><br \/>\nFILE <span class=\"token operator\">*<\/span> pf <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">fopen<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;test.txt&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;wb&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token function\">fwrite<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>a<span class=\"token punctuation\">,<\/span> <span class=\"token number\">4<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span> pf<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u2f06\u8fdb\u5236\u7684\u5f62\u5f0f\u5199\u5230\u2f42\u4ef6\u4e2d<\/span><br \/>\n<span class=\"token function\">fclose<\/span><span class=\"token punctuation\">(<\/span>pf<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\npf <span class=\"token operator\">&#061;<\/span> <span class=\"token constant\">NULL<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">return<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u5728vs\u4e0a\u6253\u5f00\u4e8c\u8fdb\u5236\u6587\u4ef6 <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/07\/20250730051245-6889a9cd5f301.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/> <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/07\/20250730051246-6889a9ce4321d.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h2>\u56db\u3001\u6587\u4ef6\u7684\u6253\u5f00\u548c\u5173\u95ed<\/h2>\n<h3>1\u3001\u6587\u4ef6\u7684\u6253\u5f00<\/h3>\n<p>\u51fd\u6570\u539f\u578b&#xff1a;<\/p>\n<p>FILE <span class=\"token operator\">*<\/span><span class=\"token function\">fopen<\/span><span class=\"token punctuation\">(<\/span> <span class=\"token keyword\">const<\/span> <span class=\"token keyword\">char<\/span> <span class=\"token operator\">*<\/span>filename<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">const<\/span> <span class=\"token keyword\">char<\/span> <span class=\"token operator\">*<\/span>mode <span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u8be5\u51fd\u6570\u7684\u529f\u80fd\u5c31\u662f\u6253\u5f00\u4e00\u4e2a\u6587\u4ef6&#xff0c;\u51fd\u6570\u7684\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u4f60\u8981\u6253\u5f00\u7684\u6587\u4ef6\u7684\u6587\u4ef6\u540d&#xff0c;\u7b2c\u4e8c\u4e2a\u53c2\u6570\u662f\u6253\u5f00\u8fd9\u4e2a\u6587\u4ef6\u7684\u5f62\u5f0f\u3002<\/p>\n<p>\u6211\u4eec\u77e5\u9053\u6253\u5f00\u4e00\u4e2a\u6587\u4ef6\u65f6&#xff0c;\u7cfb\u7edf\u4f1a\u4e3a\u8be5\u6587\u4ef6\u521b\u5efa\u4e00\u4e2a\u6587\u4ef6\u4fe1\u606f\u533a&#xff0c;\u8be5\u51fd\u6570\u8c03\u7528\u5b8c\u6bd5\u540e&#xff0c;\u5982\u679c\u6253\u5f00\u8be5\u6587\u4ef6\u6210\u529f&#xff0c;\u90a3\u4e48\u8fd4\u56de\u6307\u5411\u8be5\u6587\u4ef6\u4fe1\u606f\u533a\u7684\u6307\u9488(FILE*\u7c7b\u578b)&#xff1b;\u5982\u679c\u6253\u5f00\u6587\u4ef6\u5931\u8d25&#xff0c;\u90a3\u4e48\u8fd4\u56de\u4e00\u4e2a\u7a7a\u6307\u9488(NULL)\u3002<\/p>\n<h4>1&#xff09;\u6587\u4ef6\u7684\u6253\u5f00\u5f62\u5f0f<\/h4>\n<table>\n<tr>\u6587\u4ef6\u6253\u5f00\u65b9\u5f0f\u542b\u4e49<\/tr>\n<tbody>\n<tr>\n<td>&#034;r&#034;<\/td>\n<td>read&#xff1a;\u6253\u5f00\u6587\u4ef6\u8fdb\u884c\u8f93\u5165\u64cd\u4f5c\u3002\u8be5\u6587\u4ef6\u5fc5\u987b\u5b58\u5728\u3002<\/td>\n<\/tr>\n<tr>\n<td>&#034;w&#034;<\/td>\n<td>write&#xff1a;\u4e3a\u8f93\u51fa\u64cd\u4f5c\u521b\u5efa\u4e00\u4e2a\u7a7a\u6587\u4ef6\u3002\u5982\u679c\u5df2\u5b58\u5728\u540c\u540d\u6587\u4ef6&#xff0c;\u5219\u4e22\u5f03\u5176\u5185\u5bb9&#xff0c;\u5e76\u5c06\u8be5\u6587\u4ef6\u89c6\u4e3a\u65b0\u7684\u7a7a\u6587\u4ef6\u3002<\/td>\n<\/tr>\n<tr>\n<td>&#034;a&#034;<\/td>\n<td>append&#xff1a;\u6253\u5f00\u6587\u4ef6\u4ee5\u5728\u6587\u4ef6\u672b\u5c3e\u8f93\u51fa\u3002\u8f93\u51fa\u64cd\u4f5c\u603b\u662f\u5728\u6587\u4ef6\u672b\u5c3e\u5199\u5165\u6570\u636e&#xff0c;\u5e76\u5bf9\u5176\u8fdb\u884c\u6269\u5c55\u3002\u5ffd\u7565\u91cd\u65b0\u5b9a\u4f4d\u64cd\u4f5c&#xff08;fseek\u3001fsetpos\u3001rewind&#xff09;\u3002\u5982\u679c\u6587\u4ef6\u4e0d\u5b58\u5728&#xff0c;\u5219\u521b\u5efa\u8be5\u6587\u4ef6\u3002<\/td>\n<\/tr>\n<tr>\n<td>&#034;r&#043;&#034;<\/td>\n<td>read\/update&#xff1a;\u6253\u5f00\u4e00\u4e2a\u6587\u4ef6\u8fdb\u884c\u66f4\u65b0&#xff08;\u8f93\u5165\u548c\u8f93\u51fa&#xff09;\u3002\u6587\u4ef6\u5fc5\u987b\u5b58\u5728\u3002<\/td>\n<\/tr>\n<tr>\n<td>&#034;w&#043;&#034;<\/td>\n<td>write\/update&#xff1a;\u521b\u5efa\u4e00\u4e2a\u7a7a\u6587\u4ef6\u5e76\u6253\u5f00\u5b83\u4ee5\u8fdb\u884c\u66f4\u65b0&#xff08;\u8f93\u5165\u548c\u8f93\u51fa&#xff09;\u3002\u5982\u679c\u540c\u540d\u6587\u4ef6\u5df2\u7ecf\u5b58\u5728&#xff0c;\u5219\u5c06\u4e22\u5f03\u5176\u5185\u5bb9&#xff0c;\u5e76\u4e14\u8be5\u6587\u4ef6\u5c06\u88ab\u89c6\u4e3a\u65b0\u7684\u7a7a\u6587\u4ef6\u3002<\/td>\n<\/tr>\n<tr>\n<td>&#034;a&#043;&#034;<\/td>\n<td>append\/update&#xff1a;\u6253\u5f00\u4e00\u4e2a\u6587\u4ef6\u8fdb\u884c\u66f4\u65b0&#xff08;\u5305\u62ec\u8f93\u5165\u548c\u8f93\u51fa&#xff09;&#xff0c;\u6240\u6709\u8f93\u51fa\u64cd\u4f5c\u90fd\u5728\u6587\u4ef6\u672b\u5c3e\u5199\u5165\u6570\u636e\u3002\u91cd\u65b0\u5b9a\u4f4d\u64cd\u4f5c&#xff08;fseek\u3001fsetpos\u3001rewind&#xff09;\u4f1a\u5f71\u54cd\u4e0b\u4e00\u4e2a\u8f93\u5165\u64cd\u4f5c&#xff0c;\u4f46\u8f93\u51fa\u64cd\u4f5c\u4f1a\u5c06\u4f4d\u7f6e\u79fb\u56de\u6587\u4ef6\u672b\u5c3e\u3002\u5982\u679c\u6587\u4ef6\u4e0d\u5b58\u5728&#xff0c;\u5219\u521b\u5efa\u8be5\u6587\u4ef6\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u4f7f\u7528\u4e0a\u9762\u7684\u6a21\u5f0f\u8bf4\u660e\u7b26&#xff0c;\u6587\u4ef6\u5c06\u4f5c\u4e3a\u6587\u672c\u6587\u4ef6\u6253\u5f00\u3002\u4e3a\u4e86\u5c06\u6587\u4ef6\u4f5c\u4e3a\u4e8c\u8fdb\u5236\u6587\u4ef6\u6253\u5f00&#xff0c;\u6a21\u5f0f\u5b57\u7b26\u4e32\u4e2d\u5fc5\u987b\u5305\u542b\u201cb\u201d\u5b57\u7b26\u3002\u8fd9\u4e2a\u9644\u52a0\u7684\u201cb\u201d\u5b57\u7b26\u53ef\u4ee5\u9644\u52a0\u5728\u5b57\u7b26\u4e32\u7684\u672b\u5c3e&#xff08;\u4ece\u800c\u5f62\u6210\u4ee5\u4e0b\u590d\u5408\u6a21\u5f0f&#xff1a;\u201crb\u201d\u3001\u201cwb\u201d\u3001\u201cab\u201d\u3001\u201cr&#043;b\u201d\u3001\u201cw&#043;b\u201d\u3001\u201ca&#043;b\u201d&#xff09;&#xff0c;\u4e5f\u53ef\u4ee5\u63d2\u5165\u5728\u201c&#043;\u201d\u7b26\u53f7\u4e4b\u524d&#xff08;\u201crb&#043;\u201d\u3001\u201cwb&#043;\u201d\u3001\u201cab&#043;\u201d&#xff09;\u3002<\/p>\n<p>\u5982\u679c\u5e8f\u5217\u540e\u9762\u6709\u5176\u4ed6\u5b57\u7b26&#xff0c;\u5219\u884c\u4e3a\u53d6\u51b3\u4e8e\u5e93\u5b9e\u73b0&#xff1a;\u4e00\u4e9b\u5b9e\u73b0\u53ef\u80fd\u4f1a\u5ffd\u7565\u5176\u4ed6\u5b57\u7b26&#xff0c;\u4f8b\u5982&#xff0c;\u63a5\u53d7\u989d\u5916\u7684\u201ct\u201d&#xff08;\u6709\u65f6\u7528\u4e8e\u663e\u5f0f\u8868\u793a\u6587\u672c\u6587\u4ef6&#xff09;\u3002<\/p>\n<p>\u5728\u67d0\u4e9b\u5e93\u5b9e\u73b0\u4e2d&#xff0c;\u4f7f\u7528\u66f4\u65b0\u6a21\u5f0f\u6253\u5f00\u6216\u521b\u5efa\u6587\u672c\u6587\u4ef6\u53ef\u80fd\u4f1a\u89c6\u4e3a\u4e8c\u8fdb\u5236\u6587\u4ef6\u3002<\/p>\n<p>\u4e3e\u4e2a\u51e0\u4e2a\u4f8b\u5b50&#xff1a; 1.\u82e5\u6211\u4eec\u8981\u4ee5\u6587\u672c\u5f62\u5f0f\u6253\u5f00\u4e00\u4e2a\u540d\u53ebdata.txt\u7684\u6587\u4ef6&#xff0c;\u5c06\u8981\u5bf9\u5176\u8fdb\u884c\u8f93\u5165\u64cd\u4f5c&#xff0c;\u90a3\u4e48\u6253\u5f00\u6587\u4ef6\u65f6\u5e94\u8be5\u8fd9\u6837\u5199&#xff1a;<\/p>\n<p>FILE<span class=\"token operator\">*<\/span> pf <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">fopen<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;data.txt&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;r&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u6ce8&#xff1a;data.txt\u6587\u4ef6\u5fc5\u987b\u5b58\u5728&#xff0c;\u4e0d\u7136\u6253\u5f00\u6587\u4ef6\u5931\u8d25&#xff0c;fopen\u51fd\u6570\u4f1a\u8fd4\u56de\u4e00\u4e2a\u7a7a\u6307\u9488\u3002<\/p>\n<p>2.\u82e5\u6211\u4eec\u8981\u4ee5\u4e8c\u8fdb\u5236\u6253\u5f00\u4e00\u4e2a\u540d\u53ebdata.bin\u7684\u6587\u4ef6&#xff0c;\u5c06\u8981\u5bf9\u5176\u8fdb\u884c\u8f93\u51fa\u64cd\u4f5c&#xff0c;\u90a3\u4e48\u6253\u5f00\u6587\u4ef6\u65f6\u5e94\u8be5\u8fd9\u6837\u5199&#xff1a;<\/p>\n<p>FILE<span class=\"token operator\">*<\/span> pf <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">fopen<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;data.bin&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;wb&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u6ce8&#xff1a;data.bin\u6587\u4ef6\u82e5\u5b58\u5728&#xff0c;\u5c06\u9500\u6bc1\u6587\u4ef6\u539f\u6709\u5185\u5bb9&#xff0c;\u518d\u5bf9\u5176\u8fdb\u884c\u8f93\u51fa&#xff1b;data.bin\u6587\u4ef6\u82e5\u4e0d\u5b58\u5728&#xff0c;\u7cfb\u7edf\u5c06\u4e3b\u52a8\u521b\u5efa\u4e00\u4e2a\u540d\u53ebdata.bin\u7684\u6587\u4ef6\u3002<\/p>\n<h4>2&#xff09;\u68c0\u6d4bfopen\u8fd4\u56de\u503c\u7684\u6709\u6548\u6027<\/h4>\n<p>\u5982\u679c\u6587\u4ef6\u6253\u5f00\u6210\u529f&#xff0c;fopen\u51fd\u6570\u4f1a\u8fd4\u56de\u6307\u5411\u6587\u4ef6\u4fe1\u606f\u533a\u7684\u6307\u9488&#xff0c;\u5426\u5219fopen\u51fd\u6570\u4f1a\u8fd4\u56de\u4e00\u4e2a\u7a7a\u6307\u9488\u3002\u6240\u4ee5\u5f53\u4f7f\u7528\u63a5\u6536fopen\u51fd\u6570\u7684\u8fd4\u56de\u503c\u7684\u6307\u9488\u524d&#xff0c;\u6211\u4eec\u5fc5\u987b\u68c0\u6d4b\u5176\u6709\u6548\u6027&#xff0c;\u5426\u5219\u53ef\u80fd\u975e\u6cd5\u8bbf\u95ee\u5185\u5b58\u3002<\/p>\n<p>FILE<span class=\"token operator\">*<\/span> pf <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">fopen<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;data.txt&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;r&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>pf <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token constant\">NULL<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;%s\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token function\">strerror<\/span><span class=\"token punctuation\">(<\/span>errno<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">return<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u5931\u8d25\u8fd4\u56de<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token comment\">\/\/\u4f7f\u7528&#8230;<\/span><\/p>\n<h4>3&#xff09;\u76f8\u5bf9\u8def\u5f84\u4e0e\u7edd\u5bf9\u8def\u5f84<\/h4>\n<p>\u586b\u5199fopen\u51fd\u6570\u7684\u7b2c\u4e00\u4e2a\u53c2\u6570\u7684\u65f6\u5019&#xff0c;\u5982\u679c\u6211\u4eec\u8981\u6253\u5f00\u7684\u6587\u4ef6\u4e0e\u6211\u4eec\u6b63\u5728\u8fd0\u884c\u7684\u6e90\u4ee3\u7801\u5728\u540c\u7ea7\u76ee\u5f55\u4e0b&#xff08;\u4ee5\u6253\u5f00data.txt\u6587\u4ef6\u4e3a\u4f8b&#xff09;&#xff0c;\u90a3\u4e48\u6211\u4eec\u5e94\u8be5\u8fd9\u6837\u5199&#xff1a;<\/p>\n<p>FILE<span class=\"token operator\">*<\/span> pf <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">fopen<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;data.txt&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;r&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u540c\u7ea7<\/span><\/p>\n<p>\u4f46\u662f\u5982\u679c\u6211\u4eec\u60f3\u8981\u6253\u5f00\u7684\u6587\u4ef6\u4e0e\u5f53\u524d\u8fd0\u884c\u7684\u6e90\u4ee3\u7801\u4e0d\u5728\u540c\u4e00\u7ea7\u76ee\u5f55\u4e0b\u5462&#xff1f; \u8fd9\u65f6\u6211\u4eec\u7684\u5199\u6cd5\u6709\u4e24\u79cd&#xff0c;\u76f8\u5bf9\u8def\u5f84\u548c\u7edd\u5bf9\u8def\u5f84\u3002<\/p>\n<h5>\u76f8\u5bf9\u8def\u5f84<\/h5>\n<p>\u5f53\u5f85\u6253\u5f00\u7684\u6587\u4ef6\u4f4d\u4e8e\u6b63\u5728\u8fd0\u884c\u7684\u6e90\u4ee3\u7801\u7684\u4e0a\u4e00\u7ea7\u65f6&#xff1a;<\/p>\n<p>FILE<span class=\"token operator\">*<\/span> pf <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">fopen<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;..\/data.txt&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;r&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u4e0a\u4e00\u7ea7<\/span><\/p>\n<p>\u5f53\u5f85\u6253\u5f00\u7684\u6587\u4ef6\u4f4d\u4e8e\u6b63\u5728\u8fd0\u884c\u7684\u6e90\u4ee3\u7801\u7684\u4e0a\u4e0a\u4e00\u7ea7\u65f6&#xff1a;<\/p>\n<p>FILE<span class=\"token operator\">*<\/span> pf <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">fopen<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;..\/..\/data.txt&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;r&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u4e0a\u4e0a\u7ea7<\/span><\/p>\n<p>\u5f53\u5f85\u6253\u5f00\u7684\u6587\u4ef6\u4f4d\u4e8e\u6b63\u5728\u8fd0\u884c\u7684\u6e90\u4ee3\u7801\u7684\u4e0b\u4e00\u7ea7\u65f6&#xff1a;<\/p>\n<p>FILE<span class=\"token operator\">*<\/span> pf <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">fopen<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Debug\/data.txt&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;r&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u4e0b\u4e00\u7ea7<\/span><\/p>\n<p>\u6ce8&#xff1a;\u8fd9\u91ccdata.txt\u6587\u4ef6\u5728Debug\u6587\u4ef6\u5185&#xff0c;Debug\u6587\u4ef6\u4e0e\u6b63\u5728\u8fd0\u884c\u7684\u6e90\u4ee3\u7801\u5728\u540c\u7ea7\u76ee\u5f55\u4e0b\u3002<\/p>\n<p>\u603b\u7ed3&#xff1a;<\/p>\n<ul>\n<li>\u8981\u6253\u5f00\u4e0a\u7ea7\u7684\u6587\u4ef6\u5728\u539f\u6765\u7684\u57fa\u7840\u4e0a\u52a0\u4e0a&#034;. .\/\u201c&#xff0c;\u518d\u4e0a\u4e00\u7ea7\u518d\u52a0\u4e00\u4e2a\u201d. .\/&#034;&#xff0c;\u4ee5\u6b64\u7c7b\u63a8\u3002<\/li>\n<li>\u8981\u6253\u5f00\u4e0b\u7ea7\u7684\u6587\u4ef6&#xff0c;\u5c31\u9700\u4ece\u6e90\u4ee3\u7801\u8fd9\u4e00\u7ea7\u5f00\u59cb&#xff0c;\u5199\u51fa\u76ee\u6807\u6587\u4ef6\u7684\u8def\u5f84\u3002<\/li>\n<\/ul>\n<h5>\u7edd\u5bf9\u8def\u5f84<\/h5>\n<p>\u6709\u535a\u53cb\u53ef\u80fd\u89c9\u5f97\u76f8\u5bf9\u8def\u5f84\u7684\u65b9\u6cd5\u6bd4\u8f83\u9ebb\u70e6&#xff08;\u53ef\u80fd\u8fd8\u8981\u53bb\u6570\u76ee\u6807\u6587\u4ef6\u4e0e\u6e90\u6587\u4ef6\u76f8\u5dee\u7684\u7ea7\u6570&#xff09;&#xff0c;\u7edd\u5bf9\u8def\u5f84\u5c31\u6ca1\u90a3\u4e48\u9ebb\u70e6\u4e86&#xff0c;\u7edd\u5bf9\u8def\u5f84\u5c31\u76f4\u63a5\u5199\u51fa\u76ee\u6807\u6587\u4ef6\u7684\u5b8c\u6574\u8def\u5f84\u5373\u53ef&#xff0c;\u4f8b\u5982&#xff1a;<\/p>\n<p>FILE<span class=\"token operator\">*<\/span> pf <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">fopen<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;D:\\\\\\\\code\\\\\\\\File_function\\\\\\\\File_function\\\\\\\\data.txt&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;r&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u6ce8&#xff1a;\u6587\u4ef6\u7684\u8def\u5f84\u539f\u672c\u4e3a&#034;D:\\\\code\\\\File_function\\\\File_function\\\\data.txt&#034;&#xff0c;\u4f46\u662f\u4e3a\u4e86\u9632\u6b62\u5b57\u7b26\u4e32\u4e2d\u7684\u2019\\\\\u2018\u53ca\u5176\u540e\u9762\u7684\u5b57\u7b26\u88ab\u6574\u4f53\u89c6\u4e3a\u4e3a\u8f6c\u4e49\u5b57\u7b26&#xff0c;\u6240\u4ee5\u9700\u8981\u5728\u6bcf\u4e2a\u2019\\\\\u2018\u540e\u9762\u518d\u52a0\u4e00\u4e2a\u2019\\\\\u2019\u3002<\/p>\n<h3>2\u3001\u6587\u4ef6\u7684\u5173\u95ed<\/h3>\n<p>\u4e0e\u52a8\u6001\u5f00\u8f9f\u5185\u5b58\u7a7a\u95f4\u65f6\u4e00\u6837&#xff0c;\u5f53\u6211\u4eec\u6253\u5f00\u6587\u4ef6\u65f6&#xff0c;\u4f1a\u5728\u5185\u5b58\u4e2d\u5f00\u8f9f\u4e00\u5757\u7a7a\u95f4&#xff0c;\u5982\u679c\u6211\u4eec\u6253\u5f00\u8be5\u6587\u4ef6\u540e\u4e0d\u5173\u95ed&#xff0c;\u90a3\u4e48\u8fd9\u4e2a\u7a7a\u95f4\u4f1a\u4e00\u76f4\u5b58\u5728&#xff0c;\u4e00\u76f4\u5360\u7528\u90a3\u5757\u5185\u5b58\u7a7a\u95f4&#xff0c;\u6240\u4ee5\u5f53\u6211\u4eec\u5bf9\u4e00\u4e2a\u6587\u4ef6\u7684\u64cd\u4f5c\u7ed3\u675f\u65f6&#xff0c;\u4e00\u5b9a\u8981\u8bb0\u4f4f\u5c06\u8be5\u6587\u4ef6\u5173\u95ed\u3002\u8fd9\u5c31\u9700\u8981\u7528\u5230fclose\u51fd\u6570\u6765\u5173\u95ed\u6587\u4ef6\u3002<\/p>\n<p><span class=\"token keyword\">int<\/span> <span class=\"token function\">fclose<\/span><span class=\"token punctuation\">(<\/span> FILE <span class=\"token operator\">*<\/span>stream <span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u6211\u4eec\u5982\u679c\u8981\u5173\u95ed\u4e00\u4e2a\u6587\u4ef6&#xff0c;\u90a3\u4e48\u76f4\u63a5\u5c06\u8be5\u6587\u4ef6\u7684\u6587\u4ef6\u6307\u9488\u4f20\u5165fclose\u51fd\u6570\u5373\u53ef&#xff0c;fclose\u51fd\u6570\u5982\u679c\u5173\u95ed\u6587\u4ef6\u6210\u529f\u4f1a\u8fd4\u56de0\u3002\u4e0efree\u51fd\u6570\u4e00\u6837&#xff0c;\u5f53\u6211\u4eec\u8c03\u7528\u5b8cfclose\u51fd\u6570\u5c06\u6587\u4ef6\u5173\u95ed\u540e&#xff0c;\u6211\u4eec\u4e5f\u8981\u5c06\u6307\u5411\u6587\u4ef6\u4fe1\u606f\u533a\u7684\u6307\u9488\u7f6e\u7a7a&#xff0c;\u907f\u514d\u8be5\u6307\u9488\u53d8\u6210\u91ce\u6307\u9488\u3002<\/p>\n<p><span class=\"token function\">fclose<\/span><span class=\"token punctuation\">(<\/span>pf<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u5173\u95edpf\u6307\u5411\u7684\u6587\u4ef6<\/span><br \/>\npf <span class=\"token operator\">&#061;<\/span> <span class=\"token constant\">NULL<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u53ca\u65f6\u7f6e\u7a7a<\/span><\/p>\n<h2>\u4e94\u3001\u6587\u4ef6\u7684\u987a\u5e8f\u8bfb\u5199<\/h2>\n<h3>1\u3001\u987a\u5e8f\u8bfb\u5199\u7684\u4ecb\u7ecd<\/h3>\n<table>\n<tr>\u51fd\u6570\u540d\u529f\u80fd\u9002\u7528\u4e8e<\/tr>\n<tbody>\n<tr>\n<td>fgetc()<\/td>\n<td>\u5b57\u7b26\u8f93\u5165\u51fd\u6570<\/td>\n<td>\u6240\u6709\u8f93\u5165\u6d41<\/td>\n<\/tr>\n<tr>\n<td>fputc()<\/td>\n<td>\u5b57\u7b26\u8f93\u51fa\u51fd\u6570<\/td>\n<td>\u6240\u6709\u8f93\u51fa\u6d41<\/td>\n<\/tr>\n<tr>\n<td>fgets()<\/td>\n<td>\u6587\u672c\u884c\u8f93\u5165\u51fd\u6570<\/td>\n<td>\u6240\u6709\u8f93\u5165\u6d41<\/td>\n<\/tr>\n<tr>\n<td>fputs()<\/td>\n<td>\u6587\u672c\u884c\u8f93\u51fa\u51fd\u6570<\/td>\n<td>\u6240\u6709\u8f93\u51fa\u6d41<\/td>\n<\/tr>\n<tr>\n<td>fscanf()<\/td>\n<td>\u683c\u5f0f\u5316\u8f93\u5165\u51fd\u6570<\/td>\n<td>\u6240\u6709\u8f93\u5165\u6d41<\/td>\n<\/tr>\n<tr>\n<td>fprintf()<\/td>\n<td>\u683c\u5f0f\u5316\u8f93\u51fa\u51fd\u6570<\/td>\n<td>\u6240\u6709\u8f93\u51fa\u6d41<\/td>\n<\/tr>\n<tr>\n<td>fread()<\/td>\n<td>\u4e8c\u8fdb\u5236\u8f93\u5165<\/td>\n<td>\u6587\u4ef6\u8f93\u5165\u6d41<\/td>\n<\/tr>\n<tr>\n<td>fwrite()<\/td>\n<td>\u4e8c\u8fdb\u5236\u8f93\u51fa<\/td>\n<td>\u6587\u4ef6\u8f93\u51fa\u6d41<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h4>fput\u4e0efget<\/h4>\n<p>fput<\/p>\n<p><span class=\"token keyword\">int<\/span> <span class=\"token function\">fputc<\/span><span class=\"token punctuation\">(<\/span> <span class=\"token keyword\">int<\/span> c<span class=\"token punctuation\">,<\/span> FILE <span class=\"token operator\">*<\/span>stream <span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>fputc\u51fd\u6570\u7684\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u5f85\u8f93\u51fa\u7684\u5b57\u7b26&#xff0c;\u7b2c\u4e8c\u4e2a\u53c2\u6570\u8be5\u5b57\u7b26\u8f93\u51fa\u7684\u4f4d\u7f6e&#xff0c;\u5373fputc\u51fd\u6570\u7684\u529f\u80fd\u662f\u5c06\u4e00\u4e2a\u5b57\u7b26\u8f93\u51fa\u5230\u6307\u5b9a\u7684\u4f4d\u7f6e\u3002\u8be5\u51fd\u6570\u8c03\u7528\u5b8c\u6bd5\u4f1a\u8fd4\u56de\u7528\u6237\u4f20\u5165\u7684\u5b57\u7b26\u3002<\/p>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;stdio.h&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;string.h&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;errno.h&gt;<\/span><\/span><br \/>\n<span class=\"token keyword\">int<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token comment\">\/\/\u6253\u5f00\u6587\u4ef6<\/span><br \/>\nFILE<span class=\"token operator\">*<\/span> pf <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">fopen<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;data.txt&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;w&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>pf <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token constant\">NULL<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;%s\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token function\">strerror<\/span><span class=\"token punctuation\">(<\/span>errno<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">return<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u6587\u4ef6\u6253\u5f00\u5931\u8d25&#xff0c;\u5931\u8d25\u8fd4\u56de<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token comment\">\/\/\u5bf9\u6587\u4ef6\u8fdb\u884c\u8f93\u51fa\u5b57\u7b26\u64cd\u4f5c<\/span><br \/>\n<span class=\"token keyword\">char<\/span> i <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span>i <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#039;a&#039;<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;&#061;<\/span> <span class=\"token string\">&#039;z&#039;<\/span><span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token function\">fputc<\/span><span class=\"token punctuation\">(<\/span>i<span class=\"token punctuation\">,<\/span> pf<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token comment\">\/\/\u5173\u95ed\u6587\u4ef6<\/span><br \/>\n<span class=\"token function\">fclose<\/span><span class=\"token punctuation\">(<\/span>pf<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\npf <span class=\"token operator\">&#061;<\/span> <span class=\"token constant\">NULL<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">return<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>fget<\/p>\n<p><span class=\"token keyword\">int<\/span> <span class=\"token function\">fgetc<\/span><span class=\"token punctuation\">(<\/span> FILE <span class=\"token operator\">*<\/span>stream <span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>getc\u51fd\u6570\u53ea\u6709\u4e00\u4e2a\u53c2\u6570&#xff0c;\u5373\u4f60\u8981\u8bfb\u53d6\u7684\u6587\u4ef6\u7684\u6587\u4ef6\u6307\u9488\u3002fgets\u51fd\u6570\u7684\u529f\u80fd\u5c31\u662f\u4ece\u6307\u5b9a\u4f4d\u7f6e\u8bfb\u53d6\u4e00\u4e2a\u5b57\u7b26\u3002\u8be5\u51fd\u6570\u8c03\u7528\u6210\u529f\u4f1a\u8fd4\u56de\u8bfb\u53d6\u5230\u7684\u7684\u5b57\u7b26&#xff1b;\u82e5\u8bfb\u53d6\u6587\u4ef6\u65f6\u53d1\u751f\u9519\u8bef&#xff0c;\u6216\u662f\u5df2\u7ecf\u8bfb\u53d6\u5230\u6587\u4ef6\u672b\u5c3e&#xff0c;\u5219\u8fd4\u56deEOF\u3002<\/p>\n<p>\u4f8b\u5982&#xff0c;\u6211\u4eec\u8981\u5c06\u6587\u4ef6data.txt\u6587\u4ef6\u4e2d\u7684\u5185\u5bb9\u5168\u90e8\u8bfb\u53d6&#xff0c;\u5e76\u6253\u5370\u5230\u5c4f\u5e55\u4e0a\u3002<\/p>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;stdio.h&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;string.h&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;errno.h&gt;<\/span><\/span><br \/>\n<span class=\"token keyword\">int<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token comment\">\/\/\u6253\u5f00\u6587\u4ef6<\/span><br \/>\nFILE<span class=\"token operator\">*<\/span> pf <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">fopen<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;data.txt&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;r&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>pf <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token constant\">NULL<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;%s\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token function\">strerror<\/span><span class=\"token punctuation\">(<\/span>errno<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">return<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u6587\u4ef6\u6253\u5f00\u5931\u8d25&#xff0c;\u5931\u8d25\u8fd4\u56de<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token comment\">\/\/\u5bf9\u6587\u4ef6\u8fdb\u884c\u8f93\u5165\u5b57\u7b26\u64cd\u4f5c<\/span><br \/>\n<span class=\"token keyword\">int<\/span> ch <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span>ch <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">fgetc<\/span><span class=\"token punctuation\">(<\/span>pf<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">!&#061;<\/span> <span class=\"token constant\">EOF<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;%c&#034;<\/span><span class=\"token punctuation\">,<\/span> ch<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token comment\">\/\/\u5173\u95ed\u6587\u4ef6<\/span><br \/>\n<span class=\"token function\">fclose<\/span><span class=\"token punctuation\">(<\/span>pf<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\npf <span class=\"token operator\">&#061;<\/span> <span class=\"token constant\">NULL<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">return<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h4>fputs\u4e0efgets<\/h4>\n<p>fputs<\/p>\n<p><span class=\"token keyword\">int<\/span> <span class=\"token function\">fputs<\/span><span class=\"token punctuation\">(<\/span> <span class=\"token keyword\">const<\/span> <span class=\"token keyword\">char<\/span> <span class=\"token operator\">*<\/span>string<span class=\"token punctuation\">,<\/span> FILE <span class=\"token operator\">*<\/span>stream <span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>puts\u51fd\u6570\u7684\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u5f85\u8f93\u51fa\u7684\u5b57\u7b26\u4e32&#xff0c;\u7b2c\u4e8c\u4e2a\u53c2\u6570\u8be5\u5b57\u7b26\u4e32\u8f93\u51fa\u7684\u4f4d\u7f6e&#xff0c;\u5373fputs\u51fd\u6570\u7684\u529f\u80fd\u662f\u5c06\u4e00\u4e2a\u5b57\u7b26\u4e32\u8f93\u51fa\u5230\u6307\u5b9a\u7684\u4f4d\u7f6e&#xff08;\u6709\u6ca1\u6709\u53d1\u73b0fputs\u51fd\u6570\u7684\u53c2\u6570\u8bbe\u8ba1\u548cfputc\u51fd\u6570\u53c2\u6570\u7684\u8bbe\u8ba1\u975e\u5e38\u7c7b\u4f3c&#xff09;\u3002\u8be5\u51fd\u6570\u8c03\u7528\u6210\u529f\u4f1a\u8fd4\u56de\u4e00\u4e2a\u975e\u8d1f\u503c&#xff1b;\u82e5\u8f93\u51fa\u65f6\u53d1\u751f\u9519\u8bef&#xff0c;\u5219\u8fd4\u56deEOF\u3002<\/p>\n<p>\u4f8b\u5982&#xff0c;\u6211\u4eec\u8981\u5c06\u5b57\u7b26\u4e32&#034;hello world!&#034;\u5199\u5165\u5230data.txt\u6587\u4ef6\u4e2d\u3002<\/p>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;stdio.h&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;string.h&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;errno.h&gt;<\/span><\/span><br \/>\n<span class=\"token keyword\">int<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token comment\">\/\/\u6253\u5f00\u6587\u4ef6<\/span><br \/>\nFILE<span class=\"token operator\">*<\/span> pf <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">fopen<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;data.txt&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;w&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>pf <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token constant\">NULL<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;%s\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token function\">strerror<\/span><span class=\"token punctuation\">(<\/span>errno<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">return<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u6587\u4ef6\u6253\u5f00\u5931\u8d25&#xff0c;\u5931\u8d25\u8fd4\u56de<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token comment\">\/\/\u5bf9\u6587\u4ef6\u8fdb\u884c\u8f93\u51fa\u5b57\u7b26\u4e32\u64cd\u4f5c<\/span><br \/>\n<span class=\"token keyword\">char<\/span> arr<span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;hello world!&#034;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token function\">fputs<\/span><span class=\"token punctuation\">(<\/span>arr<span class=\"token punctuation\">,<\/span> pf<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token comment\">\/\/\u5173\u95ed\u6587\u4ef6<\/span><br \/>\n<span class=\"token function\">fclose<\/span><span class=\"token punctuation\">(<\/span>pf<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\npf <span class=\"token operator\">&#061;<\/span> <span class=\"token constant\">NULL<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">return<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>fgets<\/p>\n<p><span class=\"token keyword\">char<\/span> <span class=\"token operator\">*<\/span><span class=\"token function\">fgets<\/span><span class=\"token punctuation\">(<\/span> <span class=\"token keyword\">char<\/span> <span class=\"token operator\">*<\/span>string<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">int<\/span> n<span class=\"token punctuation\">,<\/span> FILE <span class=\"token operator\">*<\/span>stream <span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>gets\u51fd\u6570\u7684\u7b2c\u4e09\u4e2a\u53c2\u6570\u662f\u4f60\u8981\u8bfb\u53d6\u7684\u6587\u4ef6\u7684\u6587\u4ef6\u6307\u9488&#xff0c;\u7b2c\u4e8c\u4e2a\u53c2\u6570\u662f\u4f60\u8981\u8bfb\u53d6\u7684\u5b57\u7b26\u4e2a\u6570&#xff08;\u4e5f\u53ef\u4ee5\u8bf4\u662f\u5b57\u8282\u4e2a\u6570&#xff09;&#xff0c;\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u4f60\u6240\u8bfb\u53d6\u5230\u7684\u6570\u636e\u7684\u50a8\u5b58\u4f4d\u7f6e\u3002fgets\u51fd\u6570\u7684\u529f\u80fd\u5c31\u662f\u4ece\u6307\u5b9a\u4f4d\u7f6e\u8bfb\u53d6\u6307\u5b9a\u5b57\u7b26\u4e2a\u6570\u7684\u6570\u636e\u50a8\u5b58\u5230\u6307\u5b9a\u4f4d\u7f6e\u3002\u8be5\u51fd\u6570\u8c03\u7528\u6210\u529f\u4f1a\u8fd4\u56de\u7528\u4e8e\u50a8\u5b58\u6570\u636e\u7684\u4f4d\u7f6e\u7684\u5730\u5740&#xff0c;\u5982\u679c\u8bfb\u53d6\u8fc7\u7a0b\u4e2d\u53d1\u751f\u9519\u8bef&#xff0c;\u6216\u662f\u8bfb\u53d6\u5230\u4e86\u6587\u4ef6\u672b\u5c3e&#xff0c;\u5219\u8fd4\u56de\u4e00\u4e2a\u7a7a\u6307\u9488(NULL)\u3002<\/p>\n<p>\u4f8b\u5982&#xff0c;\u6211\u4eec\u8981\u4ecedata.txt\u6587\u4ef6\u4e2d\u63d0\u53d6\u6570\u636e\u3002<\/p>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;stdio.h&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;string.h&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;errno.h&gt;<\/span><\/span><br \/>\n<span class=\"token keyword\">int<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token comment\">\/\/\u6253\u5f00\u6587\u4ef6<\/span><br \/>\nFILE<span class=\"token operator\">*<\/span> pf <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">fopen<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;data.txt&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;r&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>pf <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token constant\">NULL<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;%s\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token function\">strerror<\/span><span class=\"token punctuation\">(<\/span>errno<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">return<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u6587\u4ef6\u6253\u5f00\u5931\u8d25&#xff0c;\u5931\u8d25\u8fd4\u56de<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token comment\">\/\/\u5bf9\u6587\u4ef6\u8fdb\u884c\u8f93\u5165\u5b57\u7b26\u4e32\u64cd\u4f5c<\/span><br \/>\n<span class=\"token keyword\">char<\/span> arr<span class=\"token punctuation\">[<\/span><span class=\"token number\">10<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token number\">0<\/span> <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token function\">fgets<\/span><span class=\"token punctuation\">(<\/span>arr<span class=\"token punctuation\">,<\/span> <span class=\"token number\">6<\/span><span class=\"token punctuation\">,<\/span> pf<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;%s\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> arr<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token comment\">\/\/\u5173\u95ed\u6587\u4ef6<\/span><br \/>\n<span class=\"token function\">fclose<\/span><span class=\"token punctuation\">(<\/span>pf<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\npf <span class=\"token operator\">&#061;<\/span> <span class=\"token constant\">NULL<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">return<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>fgets\u51fd\u6570\u8bfb\u53d6\u5b57\u7b26\u7684\u8fc7\u7a0b\u4e2d\u4f1a\u51fa\u73b0\u4e24\u79cd\u60c5\u51b5&#xff1a;<\/p>\n<li>\u5728fgets\u51fd\u6570\u8bfb\u53d6\u5230\u6307\u5b9a\u5b57\u7b26\u6570\u4e4b\u524d&#xff0c;\u82e5\u8bfb\u53d6\u5230\u6362\u884c\u7b26(\u2019\\\\n\u2019)&#xff0c;\u5219\u505c\u6b62\u8bfb\u53d6&#xff0c;\u8bfb\u53d6\u5e26\u56de\u7684\u5b57\u7b26\u5305\u542b\u6362\u884c\u7b26\u3002<\/li>\n<li>\u76f4\u5230fgets\u51fd\u6570\u8bfb\u53d6\u5230\u7b2cn-1\u4e2a\u5b57\u7b26\u65f6\u90fd\u6ca1\u6709\u9047\u5230\u6362\u884c\u7b26(\u2019\\\\n\u2019)&#xff0c;\u5219\u8fd4\u56de\u8bfb\u53d6\u5230\u7684n-1\u4e2a\u5b57\u7b26&#xff0c;\u5e76\u5728\u672b\u5c3e\u52a0\u4e0a\u4e00\u4e2a\u7a7a\u5b57\u7b26\u4e00\u540c\u8fd4\u56de&#xff08;\u5171n\u4e2a\u5b57\u7b26&#xff09;\u3002<\/li>\n<h4>fprintf\u4e0efcanf<\/h4>\n<p>fprintf<\/p>\n<p><span class=\"token keyword\">int<\/span> <span class=\"token function\">fprintf<\/span><span class=\"token punctuation\">(<\/span> FILE <span class=\"token operator\">*<\/span>stream<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">const<\/span> <span class=\"token keyword\">char<\/span> <span class=\"token operator\">*<\/span>format <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">,<\/span> argument <span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>fprintf\u51fd\u6570\u7684\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u6570\u636e\u8f93\u51fa\u7684\u76ee\u7684\u5730&#xff0c;\u540e\u9762\u7684\u53c2\u6570\u535a\u53cb\u4eec\u53ef\u80fd\u770b\u4e0d\u592a\u61c2&#xff0c;\u4f46\u662f\u6211\u4eec\u53ef\u4ee5\u770b\u770b\u5e93\u51fd\u6570printf\u51fd\u6570\u7684\u51fd\u6570\u58f0\u660e&#xff1a;<\/p>\n<p><span class=\"token keyword\">int<\/span> <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span> <span class=\"token keyword\">const<\/span> <span class=\"token keyword\">char<\/span> <span class=\"token operator\">*<\/span>format <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">,<\/span> argument<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span> <span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token comment\">\/\/printf\u51fd\u6570\u7684\u58f0\u660e<\/span><\/p>\n<p>\u6211\u4eec\u53d1\u73b0fprintf\u51fd\u6570\u9664\u4e86\u7b2c\u4e00\u4e2a\u53c2\u6570\u4ee5\u5916&#xff0c;\u5176\u5b83\u53c2\u6570\u90fd\u4e0eprintf\u51fd\u6570\u7684\u53c2\u6570\u4e00\u6837&#xff0c;\u867d\u7136\u6211\u4eec\u4e0d\u77e5\u9053fprintf\u51fd\u6570\u540e\u9762\u7684\u53c2\u6570\u4ee3\u8868\u7684\u610f\u601d&#xff0c;\u4f46\u662f\u6211\u4eec\u4f1a\u7528printf\u51fd\u6570\u554a&#xff0c;\u6240\u4ee5\u6211\u4eec\u4f7f\u7528fprintf\u51fd\u6570\u4f20\u53c2\u65f6\u53ef\u4ee5\u6a21\u4eff\u8005printf\u7684\u4f20\u53c2\u5f62\u5f0f\u3002<\/p>\n<p>\u4f8b\u5982\u6211\u4eec\u8981\u5c06\u4e00\u4e2a\u7ed3\u6784\u4f53\u7c7b\u578b\u7684\u53d8\u91cf\u4fe1\u606f\u8f93\u51fa\u5230data.txt\u6587\u4ef6\u4e2d\u53bb\u3002<\/p>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;stdio.h&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;string.h&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;errno.h&gt;<\/span><\/span><br \/>\n<span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">S<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token keyword\">char<\/span> name<span class=\"token punctuation\">[<\/span><span class=\"token number\">20<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">char<\/span> sex<span class=\"token punctuation\">[<\/span><span class=\"token number\">5<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">int<\/span> age<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">int<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token comment\">\/\/\u6253\u5f00\u6587\u4ef6<\/span><br \/>\nFILE<span class=\"token operator\">*<\/span> pf <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">fopen<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;data.txt&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;w&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>pf <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token constant\">NULL<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;%s\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token function\">strerror<\/span><span class=\"token punctuation\">(<\/span>errno<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">return<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u6587\u4ef6\u6253\u5f00\u5931\u8d25&#xff0c;\u5931\u8d25\u8fd4\u56de<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token comment\">\/\/\u5bf9\u6587\u4ef6\u8fdb\u884c\u683c\u5f0f\u5316\u8f93\u51fa\u64cd\u4f5c<\/span><br \/>\n<span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">S<\/span> s <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token string\">&#034;zhangsan&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;nan&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">20<\/span> <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token function\">fprintf<\/span><span class=\"token punctuation\">(<\/span>pf<span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;%s %s %d\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> s<span class=\"token punctuation\">.<\/span>name<span class=\"token punctuation\">,<\/span> s<span class=\"token punctuation\">.<\/span>sex<span class=\"token punctuation\">,<\/span> s<span class=\"token punctuation\">.<\/span>age<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token comment\">\/\/\u5173\u95ed\u6587\u4ef6<\/span><br \/>\n<span class=\"token function\">fclose<\/span><span class=\"token punctuation\">(<\/span>pf<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\npf <span class=\"token operator\">&#061;<\/span> <span class=\"token constant\">NULL<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">return<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/07\/20250730051246-6889a9ce891ba.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/> \u5176\u5b9e&#xff0c;fprintf\u51fd\u6570\u7684\u529f\u80fd\u5c31\u662f\u5c06\u201c\u533a\u57df\u4e09\u201d\u7684\u6570\u636e&#xff0c;\u4ee5\u201c\u533a\u57df\u4e8c\u201d\u7684\u683c\u5f0f\u8f93\u51fa\u5230\u201c\u533a\u57df\u4e00\u201d\u3002<\/p>\n<p>fscanf<\/p>\n<p><span class=\"token keyword\">int<\/span> <span class=\"token function\">fscanf<\/span><span class=\"token punctuation\">(<\/span> FILE <span class=\"token operator\">*<\/span>stream<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">const<\/span> <span class=\"token keyword\">char<\/span> <span class=\"token operator\">*<\/span>format <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">,<\/span> argument <span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span> <span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>fscanf\u51fd\u6570\u7684\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u8bfb\u53d6\u6570\u636e\u7684\u4f4d\u7f6e&#xff0c;\u540e\u9762\u7684\u53c2\u6570\u6211\u4eec\u4e5f\u53ef\u4ee5\u7c7b\u6bd4scanf\u51fd\u6570\u7684\u53c2\u6570&#xff1a;<\/p>\n<p><span class=\"token keyword\">int<\/span> <span class=\"token function\">scanf<\/span><span class=\"token punctuation\">(<\/span> <span class=\"token keyword\">const<\/span> <span class=\"token keyword\">char<\/span> <span class=\"token operator\">*<\/span>format <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">,<\/span>argument<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span> <span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u6211\u4eec\u53ef\u4ee5\u770b\u5230fscanf\u51fd\u6570\u7684\u53c2\u6570\u4e5f\u662f&#xff0c;\u9664\u4e86\u7b2c\u4e00\u4e2a\u53c2\u6570\u4ee5\u5916&#xff0c;\u5176\u4ed6\u53c2\u6570\u5c31\u662fscanf\u51fd\u6570\u7684\u53c2\u6570&#xff0c;\u4e8e\u662f\u6211\u4eec\u53ef\u4ee5\u8bd5\u7740\u5c1d\u8bd5\u4f7f\u7528\u3002<\/p>\n<p>\u4f8b\u5982&#xff0c;\u6211\u4eec\u8981\u5c06\u521a\u624d\u7528fprintf\u51fd\u6570\u8f93\u51fa\u5230data.txt\u6587\u4ef6\u4e2d\u7684\u6570\u636e\u8bfb\u53d6\u51fa\u6765\u3002<\/p>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;stdio.h&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;string.h&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;errno.h&gt;<\/span><\/span><br \/>\n<span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">S<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token keyword\">char<\/span> name<span class=\"token punctuation\">[<\/span><span class=\"token number\">20<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">char<\/span> sex<span class=\"token punctuation\">[<\/span><span class=\"token number\">5<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">int<\/span> age<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">int<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token comment\">\/\/\u6253\u5f00\u6587\u4ef6<\/span><br \/>\nFILE<span class=\"token operator\">*<\/span> pf <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">fopen<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;data.txt&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;r&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>pf <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token constant\">NULL<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;%s\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token function\">strerror<\/span><span class=\"token punctuation\">(<\/span>errno<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">return<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u6587\u4ef6\u6253\u5f00\u5931\u8d25&#xff0c;\u5931\u8d25\u8fd4\u56de<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token comment\">\/\/\u5bf9\u6587\u4ef6\u8fdb\u884c\u683c\u5f0f\u5316\u8f93\u5165\u64cd\u4f5c<\/span><br \/>\n<span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">S<\/span> tmp <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token number\">0<\/span> <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token function\">fscanf<\/span><span class=\"token punctuation\">(<\/span>pf<span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;%s %s %d&#034;<\/span><span class=\"token punctuation\">,<\/span> tmp<span class=\"token punctuation\">.<\/span>name<span class=\"token punctuation\">,<\/span> tmp<span class=\"token punctuation\">.<\/span>sex<span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span><span class=\"token punctuation\">(<\/span>tmp<span class=\"token punctuation\">.<\/span>age<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;%s %s %d\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> tmp<span class=\"token punctuation\">.<\/span>name<span class=\"token punctuation\">,<\/span> tmp<span class=\"token punctuation\">.<\/span>sex<span class=\"token punctuation\">,<\/span> tmp<span class=\"token punctuation\">.<\/span>age<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token comment\">\/\/\u5c06tmp\u4e2d\u7684\u5185\u5bb9\u6253\u5370\u51fa\u6765&#xff0c;\u770b\u662f\u5426\u8bfb\u53d6\u6210\u529f<\/span><br \/>\n<span class=\"token comment\">\/\/\u5173\u95ed\u6587\u4ef6<\/span><br \/>\n<span class=\"token function\">fclose<\/span><span class=\"token punctuation\">(<\/span>pf<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\npf <span class=\"token operator\">&#061;<\/span> <span class=\"token constant\">NULL<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">return<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/07\/20250730051246-6889a9ceb9f62.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/> \u5176\u5b9e&#xff0c;fscanf\u51fd\u6570\u7684\u529f\u80fd\u5c31\u662f\u5c06\u201c\u533a\u57df\u4e00\u201d\u7684\u6570\u636e&#xff0c;\u4ee5\u201c\u533a\u57df\u4e8c\u201d\u7684\u683c\u5f0f\u8f93\u5165\u5230\u201c\u533a\u57df\u4e09\u201d\u3002<\/p>\n<h4>fwrite\u4e0efread<\/h4>\n<p>fwrite<\/p>\n<p><span class=\"token class-name\">size_t<\/span> <span class=\"token function\">fwrite<\/span><span class=\"token punctuation\">(<\/span> <span class=\"token keyword\">const<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token operator\">*<\/span>buffer<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">size_t<\/span> size<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">size_t<\/span> count<span class=\"token punctuation\">,<\/span> FILE <span class=\"token operator\">*<\/span>stream <span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>write\u51fd\u6570\u7684\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u8f93\u51fa\u6570\u636e\u7684\u4f4d\u7f6e&#xff0c;\u7b2c\u4e8c\u4e2a\u53c2\u6570\u662f\u8981\u8f93\u51fa\u6570\u636e\u7684\u5143\u7d20\u4e2a\u6570&#xff0c;\u7b2c\u4e09\u4e2a\u53c2\u6570\u662f\u6bcf\u4e2a\u5143\u7d20\u7684\u5927\u5c0f&#xff0c;\u7b2c\u56db\u4e2a\u53c2\u6570\u662f\u6570\u636e\u8f93\u51fa\u7684\u76ee\u6807\u4f4d\u7f6e\u3002\u8be5\u51fd\u6570\u8c03\u7528\u5b8c\u540e&#xff0c;\u4f1a\u8fd4\u56de\u5b9e\u9645\u5199\u5165\u76ee\u6807\u4f4d\u7f6e\u7684\u5143\u7d20\u4e2a\u6570&#xff0c;\u5f53\u8f93\u51fa\u65f6\u53d1\u751f\u9519\u8bef\u6216\u662f\u5f85\u8f93\u51fa\u6570\u636e\u5143\u7d20\u4e2a\u6570\u5c0f\u4e8e\u8981\u6c42\u8f93\u51fa\u7684\u5143\u7d20\u4e2a\u6570\u65f6&#xff0c;\u4f1a\u8fd4\u56de\u4e00\u4e2a\u5c0f\u4e8ecount\u7684\u6570\u3002<\/p>\n<p>\u6982\u62ec\u4e00\u4e0b&#xff0c;fwrite\u51fd\u6570\u7684\u529f\u80fd\u5c31\u662f\u5c06buffer\u4f4d\u7f6e\u7684&#xff0c;\u6bcf\u4e2a\u5143\u7d20\u5927\u5c0f\u4e3asize\u7684&#xff0c;count\u4e2a\u5143\u7d20&#xff0c;\u4ee5\u4e8c\u8fdb\u5236\u7684\u5f62\u5f0f\u8f93\u51fa\u5230stream\u4f4d\u7f6e\u3002 <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/07\/20250730051246-6889a9cee665e.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/> \u4f8b\u5982&#xff0c;\u6211\u4eec\u8981\u5c06\u6570\u7ec4arr\u4e2d\u768410\u4e2a\u5143\u7d20\u4ee5\u4e8c\u8fdb\u5236\u7684\u5f62\u5f0f\u8f93\u51fa\u5230data.txt\u6587\u4ef6\u4e2d\u53bb\u3002<\/p>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;stdio.h&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;string.h&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;errno.h&gt;<\/span><\/span><br \/>\n<span class=\"token keyword\">int<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token comment\">\/\/\u6253\u5f00\u6587\u4ef6<\/span><br \/>\nFILE<span class=\"token operator\">*<\/span> pf <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">fopen<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;data.txt&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;wb&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>pf <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token constant\">NULL<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;%s\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token function\">strerror<\/span><span class=\"token punctuation\">(<\/span>errno<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">return<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u6587\u4ef6\u6253\u5f00\u5931\u8d25&#xff0c;\u5931\u8d25\u8fd4\u56de<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token comment\">\/\/\u5bf9\u6587\u4ef6\u4ee5\u4e8c\u8fdb\u5236\u5f62\u5f0f\u8fdb\u884c\u8f93\u51fa\u64cd\u4f5c<\/span><br \/>\n<span class=\"token keyword\">int<\/span> arr<span class=\"token punctuation\">[<\/span><span class=\"token number\">10<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">2<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">3<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">4<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">5<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">6<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">7<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">8<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">9<\/span> <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token function\">fwrite<\/span><span class=\"token punctuation\">(<\/span>arr<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">sizeof<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">10<\/span><span class=\"token punctuation\">,<\/span> pf<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token comment\">\/\/\u5173\u95ed\u6587\u4ef6<\/span><br \/>\n<span class=\"token function\">fclose<\/span><span class=\"token punctuation\">(<\/span>pf<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\npf <span class=\"token operator\">&#061;<\/span> <span class=\"token constant\">NULL<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">return<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u6ce8&#xff1a;\u6b64\u65f6\u6253\u5f00\u6587\u4ef6\u7684\u5f62\u5f0f\u5e94\u4e3a&#034;wb&#034;&#xff0c;\u5373\u4ee5\u4e8c\u8fdb\u5236\u7684\u5f62\u5f0f\u6253\u5f00\u6587\u4ef6&#xff0c;\u8fdb\u884c\u8f93\u51fa\u64cd\u4f5c\u3002<\/p>\n<p>fread<\/p>\n<p><span class=\"token class-name\">size_t<\/span> <span class=\"token function\">fread<\/span><span class=\"token punctuation\">(<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token operator\">*<\/span>buffer<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">size_t<\/span> size<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">size_t<\/span> count<span class=\"token punctuation\">,<\/span> FILE <span class=\"token operator\">*<\/span>stream <span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>fread\u51fd\u6570\u7684\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u63a5\u6536\u6570\u636e\u7684\u4f4d\u7f6e&#xff0c;\u7b2c\u4e8c\u4e2a\u53c2\u6570\u662f\u8981\u8bfb\u53d6\u7684\u6bcf\u4e2a\u5143\u7d20\u7684\u5927\u5c0f&#xff0c;\u7b2c\u4e09\u4e2a\u53c2\u6570\u662f\u8981\u8bfb\u53d6\u7684\u5143\u7d20\u4e2a\u6570&#xff0c;\u7b2c\u56db\u4e2a\u53c2\u6570\u662f\u8bfb\u53d6\u6570\u636e\u7684\u4f4d\u7f6e\u3002\u51fd\u6570\u8c03\u7528\u5b8c\u4f1a\u8fd4\u56de\u5b9e\u9645\u8bfb\u53d6\u7684\u5143\u7d20\u4e2a\u6570&#xff0c;\u82e5\u5728\u8bfb\u53d6\u8fc7\u7a0b\u4e2d\u53d1\u751f\u9519\u8bef\u6216\u662f\u5728\u672a\u8bfb\u53d6\u5230\u6307\u5b9a\u5143\u7d20\u4e2a\u6570\u65f6\u8bfb\u53d6\u5230\u6587\u4ef6\u672b\u5c3e&#xff0c;\u5219\u8fd4\u56de\u4e00\u4e2a\u5c0f\u4e8ecount\u7684\u6570\u3002<\/p>\n<p>\u6982\u62ec\u4e00\u4e0b&#xff0c;fread\u51fd\u6570\u7684\u529f\u80fd\u5c31\u662f\u4ecestream\u4f4d\u7f6e&#xff0c;\u4ee5\u4e8c\u8fdb\u5236\u7684\u5f62\u5f0f\u8bfb\u53d6count\u4e2a\u6bcf\u4e2a\u5143\u7d20\u5927\u5c0f\u4e3asize\u7684\u6570\u636e&#xff0c;\u5230buffer\u4f4d\u7f6e\u3002<\/p>\n<p>\u4f8b\u5982&#xff0c;\u6211\u4eec\u8981\u5c06\u521a\u624d\u7528fwrite\u51fd\u6570\u8f93\u51fa\u5230data.txt\u6587\u4ef6\u7684\u6570\u636e\u8bfb\u53d6\u51fa\u6765\u3002<\/p>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;stdio.h&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;string.h&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;errno.h&gt;<\/span><\/span><br \/>\n<span class=\"token keyword\">int<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token comment\">\/\/\u6253\u5f00\u6587\u4ef6<\/span><br \/>\nFILE<span class=\"token operator\">*<\/span> pf <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">fopen<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;data.txt&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;rb&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>pf <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token constant\">NULL<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;%s\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token function\">strerror<\/span><span class=\"token punctuation\">(<\/span>errno<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">return<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u6587\u4ef6\u6253\u5f00\u5931\u8d25&#xff0c;\u5931\u8d25\u8fd4\u56de<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token comment\">\/\/\u5bf9\u6587\u4ef6\u4ee5\u4e8c\u8fdb\u5236\u5f62\u5f0f\u8fdb\u884c\u8f93\u5165\u64cd\u4f5c<\/span><br \/>\n<span class=\"token keyword\">int<\/span> arr<span class=\"token punctuation\">[<\/span><span class=\"token number\">10<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token number\">0<\/span> <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token function\">fread<\/span><span class=\"token punctuation\">(<\/span>arr<span class=\"token punctuation\">,<\/span><span class=\"token keyword\">sizeof<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">10<\/span><span class=\"token punctuation\">,<\/span>pf<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">int<\/span> i <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span>i <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">10<\/span><span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;%d &#034;<\/span><span class=\"token punctuation\">,<\/span> arr<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token comment\">\/\/\u5c06arr\u4e2d\u7684\u5185\u5bb9\u6253\u5370\u51fa\u6765&#xff0c;\u770b\u662f\u5426\u8bfb\u53d6\u6210\u529f<\/span><br \/>\n<span class=\"token comment\">\/\/\u5173\u95ed\u6587\u4ef6<\/span><br \/>\n<span class=\"token function\">fclose<\/span><span class=\"token punctuation\">(<\/span>pf<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\npf <span class=\"token operator\">&#061;<\/span> <span class=\"token constant\">NULL<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">return<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u6ce8&#xff1a;\u6b64\u65f6\u6253\u5f00\u6587\u4ef6\u7684\u5f62\u5f0f\u5e94\u4e3a&#034;rb&#034;&#xff0c;\u5373\u4ee5\u4e8c\u8fdb\u5236\u7684\u5f62\u5f0f\u6253\u5f00\u6587\u4ef6&#xff0c;\u8fdb\u884c\u8f93\u5165\u64cd\u4f5c\u3002<\/p>\n<h2>\u516d\u3001\u6587\u4ef6\u7684\u968f\u673a\u8bfb\u5199<\/h2>\n<h3>1\u3001\u6838\u5fc3\u51fd\u6570&#xff1a;\u6587\u4ef6\u968f\u673a\u8bfb\u5199\u4e09\u5251\u5ba2<\/h3>\n<h4>1&#xff09; \u5b9a\u4f4d\u51fd\u6570 fseek()<\/h4>\n<p><span class=\"token keyword\">int<\/span> <span class=\"token function\">fseek<\/span><span class=\"token punctuation\">(<\/span>FILE <span class=\"token operator\">*<\/span>stream<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">long<\/span> offset<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">int<\/span> origin<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<ul>\n<li>\u4f5c\u7528&#xff1a;\u79fb\u52a8\u6587\u4ef6\u6307\u9488\u5230\u6307\u5b9a\u4f4d\u7f6e<\/li>\n<li>\u53c2\u6570&#xff1a;\n<ul>\n<li>origin&#xff1a;\u57fa\u51c6\u4f4d\u7f6e&#xff08;\u53ef\u9009\u4ee5\u4e0b\u5e38\u91cf&#xff09;&#xff1a;\n<ul>\n<li>SEEK_SET&#xff1a;\u6587\u4ef6\u5f00\u5934&#xff08;0\u4f4d\u7f6e&#xff09;<\/li>\n<li>SEEK_CUR&#xff1a;\u5f53\u524d\u4f4d\u7f6e<\/li>\n<li>SEEK_END&#xff1a;\u6587\u4ef6\u672b\u5c3e<\/li>\n<\/ul>\n<\/li>\n<li>offset&#xff1a;\u504f\u79fb\u91cf&#xff08;\u5b57\u8282\u6570&#xff09;&#xff0c;\u53ef\u6b63\u53ef\u8d1f<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>\u793a\u4f8b&#xff1a;\u8df3\u8f6c\u5230\u6587\u4ef6\u7b2c100\u5b57\u8282\u5904<\/p>\n<p><span class=\"token function\">fseek<\/span><span class=\"token punctuation\">(<\/span>fp<span class=\"token punctuation\">,<\/span> <span class=\"token number\">100<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token constant\">SEEK_SET<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u4ece\u5f00\u5934\u5411\u540e\u8df3100\u5b57\u8282<\/span><\/p>\n<h4>2&#xff09; \u83b7\u53d6\u4f4d\u7f6e ftell()<\/h4>\n<p><span class=\"token keyword\">long<\/span> <span class=\"token function\">ftell<\/span><span class=\"token punctuation\">(<\/span>FILE <span class=\"token operator\">*<\/span>stream<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<ul>\n<li>\u4f5c\u7528&#xff1a;\u8fd4\u56de\u5f53\u524d\u6587\u4ef6\u6307\u9488\u7684\u4f4d\u7f6e&#xff08;\u76f8\u5bf9\u4e8e\u5f00\u5934\u7684\u5b57\u8282\u6570&#xff09;<\/li>\n<\/ul>\n<p>\u793a\u4f8b&#xff1a;\u8bb0\u5f55\u5f53\u524d\u4f4d\u7f6e<\/p>\n<p><span class=\"token keyword\">long<\/span> pos <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">ftell<\/span><span class=\"token punctuation\">(<\/span>fp<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u83b7\u53d6\u5f53\u524d\u4f4d\u7f6e<\/span><\/p>\n<h4>3&#xff09; \u91cd\u7f6e\u6307\u9488 rewind()<\/h4>\n<p><span class=\"token keyword\">void<\/span> <span class=\"token function\">rewind<\/span><span class=\"token punctuation\">(<\/span>FILE <span class=\"token operator\">*<\/span>stream<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<ul>\n<li>\u4f5c\u7528&#xff1a;\u5c06\u6587\u4ef6\u6307\u9488\u91cd\u7f6e\u5230\u5f00\u5934&#xff08;\u7b49\u4ef7\u4e8efseek(fp, 0, SEEK_SET)&#xff09;<\/li>\n<\/ul>\n<hr \/>\n<h3>2\u3001 \u5b9e\u6218\u6f14\u793a&#xff1a;\u4fee\u6539\u6587\u4ef6\u4e2d\u95f4\u5185\u5bb9<\/h3>\n<p>\u5047\u8bbe\u6709\u4e00\u4e2a\u65e5\u5fd7\u6587\u4ef6log.txt&#xff0c;\u5185\u5bb9\u5982\u4e0b&#xff1a;<\/p>\n<p>[1] \u542f\u52a8\u6210\u529f<br \/>\n[2] \u52a0\u8f7d\u914d\u7f6e<br \/>\n[3] \u8fde\u63a5\u6570\u636e\u5e93<\/p>\n<p>\u73b0\u5728\u9700\u8981\u5c06\u7b2c2\u6761\u65e5\u5fd7\u6539\u4e3a[2] \u52a0\u8f7d\u914d\u7f6e&#xff08;\u5df2\u7f13\u5b58&#xff09;&#xff1a;<\/p>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;stdio.h&gt;<\/span><\/span><br \/>\n<span class=\"token keyword\">int<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    FILE <span class=\"token operator\">*<\/span>fp <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">fopen<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;log.txt&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;r&#043;&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u5fc5\u987b\u7528&#034;r&#043;&#034;\u6a21\u5f0f<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>fp <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token constant\">NULL<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token function\">perror<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u6587\u4ef6\u6253\u5f00\u5931\u8d25&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u5b9a\u4f4d\u5230\u7b2c2\u884c\u5f00\u5934&#xff08;\u5047\u8bbe\u6bcf\u884c\u56fa\u5b9a20\u5b57\u8282&#xff09;<\/span><br \/>\n    <span class=\"token function\">fseek<\/span><span class=\"token punctuation\">(<\/span>fp<span class=\"token punctuation\">,<\/span> <span class=\"token number\">20<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token constant\">SEEK_SET<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u4fee\u6539\u5185\u5bb9&#xff08;\u6ce8\u610f\u957f\u5ea6\u5fc5\u987b\u4e00\u81f4&#xff0c;\u5426\u5219\u4f1a\u8986\u76d6\u540e\u7eed\u5185\u5bb9&#xff09;<\/span><br \/>\n    <span class=\"token function\">fprintf<\/span><span class=\"token punctuation\">(<\/span>fp<span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;[2] \u52a0\u8f7d\u914d\u7f6e&#xff08;\u5df2\u7f13\u5b58&#xff09;&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token function\">fclose<\/span><span class=\"token punctuation\">(<\/span>fp<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<hr \/>\n<h3>3\u3001 \u9ad8\u7ea7\u6280\u5de7&#xff1a;\u4e8c\u8fdb\u5236\u6587\u4ef6\u968f\u673a\u8bbf\u95ee<\/h3>\n<p>\u5bf9\u4e8e\u4e8c\u8fdb\u5236\u6587\u4ef6&#xff08;\u5982\u7ed3\u6784\u4f53\u6570\u636e&#xff09;&#xff0c;\u53ef\u4ee5\u76f4\u63a5\u8df3\u8f6c\u5230\u6307\u5b9a\u8bb0\u5f55&#xff1a;<\/p>\n<p><span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">Record<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">int<\/span> id<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">char<\/span> name<span class=\"token punctuation\">[<\/span><span class=\"token number\">50<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u8bfb\u53d6\u7b2c3\u6761\u8bb0\u5f55&#xff08;\u6bcf\u6761\u8bb0\u5f55\u536054\u5b57\u8282&#xff09;<\/span><br \/>\n<span class=\"token function\">fseek<\/span><span class=\"token punctuation\">(<\/span>fp<span class=\"token punctuation\">,<\/span> <span class=\"token number\">2<\/span> <span class=\"token operator\">*<\/span> <span class=\"token keyword\">sizeof<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">Record<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token constant\">SEEK_SET<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">Record<\/span> r<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token function\">fread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>r<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">sizeof<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">Record<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span> fp<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<hr \/>\n<h3>4.\u3001\u907f\u5751\u6307\u5357<\/h3>\n<li>\u6a21\u5f0f\u9009\u62e9&#xff1a;\u968f\u673a\u8bfb\u5199\u5fc5\u987b\u7528&#034;r&#043;&#034;\u3001&#034;w&#043;&#034;\u6216&#034;a&#043;&#034;\u6a21\u5f0f<\/li>\n<li>\u6587\u672c\u6587\u4ef6\u9677\u9631&#xff1a;\u5728Windows\u4e2d&#xff0c;\u6587\u672c\u6a21\u5f0f\u7684\\\\n\u4f1a\u88ab\u8f6c\u6362\u4e3a\\\\r\\\\n&#xff0c;\u5f71\u54cd\u504f\u79fb\u91cf\u8ba1\u7b97<\/li>\n<li>\u8d8a\u754c\u68c0\u67e5&#xff1a;\u8df3\u8f6c\u65f6\u786e\u4fddoffset\u4e0d\u8d85\u8fc7\u6587\u4ef6\u5927\u5c0f&#xff08;\u53ef\u901a\u8fc7fseek(fp, 0, SEEK_END)\u83b7\u53d6\u6587\u4ef6\u957f\u5ea6&#xff09;<\/li>\n<hr \/>\n<p>\u601d\u8003\u9898&#xff1a;\u5982\u4f55\u7528fseek()\u548cftell()\u5b9e\u73b0\u6587\u4ef6\u5927\u5c0f\u68c0\u6d4b&#xff1f;\u6b22\u8fce\u5728\u8bc4\u8bba\u533a\u8ba8\u8bba&#xff01;<\/p>\n<hr \/>\n<p>\u76f8\u5173\u63a8\u8350&#xff1a;<\/p>\n<ul>\n<li>C\u8bed\u8a00\u6587\u4ef6\u64cd\u4f5c\u5927\u5168<\/li>\n<li>\u7528\u5185\u5b58\u6620\u5c04\u5b9e\u73b0\u8d85\u9ad8\u901f\u6587\u4ef6\u8bfb\u5199<\/li>\n<\/ul>\n<h2>\u4e03\u3001\u6587\u4ef6\u8bfb\u53d6\u7ed3\u675f\u7684\u5224\u5b9a<\/h2>\n<h3>1\u3001\u6838\u5fc3\u65b9\u6cd5<\/h3>\n<h4>1.&#xff09;feof()\u51fd\u6570&#xff08;\u6700\u5e38\u7528&#xff09;<\/h4>\n<p><span class=\"token keyword\">int<\/span> <span class=\"token function\">feof<\/span><span class=\"token punctuation\">(<\/span>FILE <span class=\"token operator\">*<\/span>stream<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<ul>\n<li>\u4f5c\u7528&#xff1a;\u68c0\u6d4b\u6587\u4ef6\u6307\u9488\u662f\u5426\u5230\u8fbe\u6587\u4ef6\u672b\u5c3e<\/li>\n<li>\u8fd4\u56de\u503c&#xff1a;\n<ul>\n<li>\u975e0\u503c&#xff1a;\u5df2\u5230\u8fbe\u6587\u4ef6\u5c3e&#xff08;EOF&#xff09;<\/li>\n<li>0&#xff1a;\u672a\u5230\u8fbe<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>\u793a\u4f8b&#xff1a;<\/p>\n<p><span class=\"token keyword\">while<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">!<\/span><span class=\"token function\">feof<\/span><span class=\"token punctuation\">(<\/span>fp<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">char<\/span> ch <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">fgetc<\/span><span class=\"token punctuation\">(<\/span>fp<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u5904\u7406\u5b57\u7b26&#8230;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h4>2.&#xff09;\u8bfb\u53d6\u51fd\u6570\u8fd4\u56de\u503c&#xff08;\u6700\u53ef\u9760&#xff09;<\/h4>\n<ul>\n<li>\u9002\u7528\u4e8e&#xff1a;fgetc(), fgets(), fread()\u7b49<\/li>\n<li>\u539f\u7406&#xff1a;\u8fd9\u4e9b\u51fd\u6570\u9047\u5230EOF\u65f6\u4f1a\u8fd4\u56de\u7279\u6b8a\u503c&#xff1a;\n<ul>\n<li>fgetc() \u8fd4\u56de EOF<\/li>\n<li>fgets() \u8fd4\u56de NULL<\/li>\n<li>fread() \u8fd4\u56de\u5b9e\u9645\u8bfb\u53d6\u9879\u6570&#xff08;\u5c0f\u4e8e\u8bf7\u6c42\u9879\u6570\u8868\u793aEOF&#xff09;<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>\u793a\u4f8b&#xff1a;<\/p>\n<p><span class=\"token comment\">\/\/ fgetc\u7248<\/span><br \/>\n<span class=\"token keyword\">int<\/span> ch<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">while<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span>ch <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">fgetc<\/span><span class=\"token punctuation\">(<\/span>fp<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">!&#061;<\/span> <span class=\"token constant\">EOF<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token function\">putchar<\/span><span class=\"token punctuation\">(<\/span>ch<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/\/ fgets\u7248<\/span><br \/>\n<span class=\"token keyword\">char<\/span> buffer<span class=\"token punctuation\">[<\/span><span class=\"token number\">100<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">while<\/span><span class=\"token punctuation\">(<\/span><span class=\"token function\">fgets<\/span><span class=\"token punctuation\">(<\/span>buffer<span class=\"token punctuation\">,<\/span> <span class=\"token number\">100<\/span><span class=\"token punctuation\">,<\/span> fp<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">!&#061;<\/span> <span class=\"token constant\">NULL<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;%s&#034;<\/span><span class=\"token punctuation\">,<\/span> buffer<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h4>3.&#xff09;\u6587\u4ef6\u4f4d\u7f6e\u68c0\u6d4b&#xff08;\u9002\u5408\u4e8c\u8fdb\u5236\u6587\u4ef6&#xff09;<\/h4>\n<p><span class=\"token function\">fseek<\/span><span class=\"token punctuation\">(<\/span>fp<span class=\"token punctuation\">,<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token constant\">SEEK_END<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u8df3\u5230\u6587\u4ef6\u5c3e<\/span><br \/>\n<span class=\"token keyword\">long<\/span> file_size <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">ftell<\/span><span class=\"token punctuation\">(<\/span>fp<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u83b7\u53d6\u603b\u5b57\u8282\u6570<\/span><br \/>\n<span class=\"token function\">rewind<\/span><span class=\"token punctuation\">(<\/span>fp<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u56de\u5230\u6587\u4ef6\u5934<\/span><\/p>\n<p><span class=\"token keyword\">while<\/span><span class=\"token punctuation\">(<\/span><span class=\"token function\">ftell<\/span><span class=\"token punctuation\">(<\/span>fp<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&lt;<\/span> file_size<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u8bfb\u53d6\u64cd\u4f5c&#8230;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h3>2\u3001\u91cd\u8981\u6ce8\u610f\u4e8b\u9879<\/h3>\n<li>feof()\u7684\u6ede\u540e\u6027&#xff1a;\u5fc5\u987b\u5728\u8bfb\u53d6\u64cd\u4f5c\u540e\u8c03\u7528\u624d\u4f1a\u6b63\u786e\u68c0\u6d4bEOF<\/li>\n<li>\u4e8c\u8fdb\u5236\u6587\u4ef6&#xff1a;\u63a8\u8350\u7528fread()\u8fd4\u56de\u503c\u5224\u65ad<\/li>\n<li>Windows\u6362\u884c\u7b26&#xff1a;\u6587\u672c\u6a21\u5f0f\u4e0b\\\\r\\\\n\u4f1a\u88ab\u89c6\u4e3a\u5355\u4e2a\u5b57\u7b26<\/li>\n<h3>3\u3001\u5178\u578b\u9519\u8bef\u6848\u4f8b<\/h3>\n<p><span class=\"token comment\">\/\/ \u9519\u8bef\u5199\u6cd5&#xff01;\u4f1a\u591a\u8bfb\u4e00\u6b21<\/span><br \/>\n<span class=\"token keyword\">while<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">!<\/span><span class=\"token function\">feof<\/span><span class=\"token punctuation\">(<\/span>fp<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">char<\/span> ch <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">fgetc<\/span><span class=\"token punctuation\">(<\/span>fp<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u6700\u540e\u4e00\u6b21\u8bfb\u53d6\u5230EOF\u540e\u4ecd\u4f1a\u8fdb\u5165\u5faa\u73af<\/span><br \/>\n    <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;%c&#034;<\/span><span class=\"token punctuation\">,<\/span> ch<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h3>4\u3001\u6700\u4f73\u5b9e\u8df5<\/h3>\n<p><span class=\"token comment\">\/\/ \u6b63\u786e\u7ec4\u5408\u5199\u6cd5<\/span><br \/>\n<span class=\"token keyword\">while<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">int<\/span> ch <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">fgetc<\/span><span class=\"token punctuation\">(<\/span>fp<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token function\">feof<\/span><span class=\"token punctuation\">(<\/span>fp<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">break<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u5728\u8bfb\u53d6\u540e\u7acb\u5373\u68c0\u67e5<\/span><br \/>\n    <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;%c&#034;<\/span><span class=\"token punctuation\">,<\/span> ch<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h2>\u516b\u3001\u6587\u4ef6\u7f13\u51b2\u533a<\/h2>\n<h3>ANSI C \u6807\u51c6\u4e0b\u7684\u7f13\u51b2\u6587\u4ef6\u7cfb\u7edf\u89e3\u6790<\/h3>\n<h4>1&#xff09; \u7f13\u51b2\u6587\u4ef6\u7cfb\u7edf\u5de5\u4f5c\u673a\u5236<\/h4>\n<p>ANSI C \u6807\u51c6\u91c7\u7528\u7f13\u51b2\u6587\u4ef6\u7cfb\u7edf\u5904\u7406\u6570\u636e\u6587\u4ef6\u3002\u8be5\u7cfb\u7edf\u4f1a\u5728\u5185\u5b58\u4e2d\u4e3a\u6bcf\u4e2a\u6253\u5f00\u7684\u6587\u4ef6\u81ea\u52a8\u5206\u914d\u6587\u4ef6\u7f13\u51b2\u533a&#xff0c;\u4f5c\u4e3a\u5185\u5b58\u4e0e\u78c1\u76d8\u4e4b\u95f4\u7684\u6570\u636e\u4e2d\u8f6c\u7ad9\u3002\u8fd9\u79cd\u8bbe\u8ba1\u901a\u8fc7\u51cf\u5c11\u76f4\u63a5\u78c1\u76d8I\/O\u64cd\u4f5c\u6b21\u6570&#xff0c;\u663e\u8457\u63d0\u5347\u6587\u4ef6\u8bfb\u5199\u6548\u7387\u3002<\/p>\n<h4>2&#xff09;\u7f13\u51b2\u5de5\u4f5c\u539f\u7406<\/h4>\n<li>\n<p>\u8f93\u51fa\u7f13\u51b2&#xff08;\u5185\u5b58\u2192\u78c1\u76d8&#xff09;<\/p>\n<ul>\n<li>\u7a0b\u5e8f\u6570\u636e\u9996\u5148\u5199\u5165\u5185\u5b58\u7f13\u51b2\u533a<\/li>\n<li>\u7f13\u51b2\u533a\u6ee1\u540e&#xff0c;\u7cfb\u7edf\u81ea\u52a8\u6574\u5757\u5199\u5165\u78c1\u76d8<\/li>\n<li>\u793a\u4f8b&#xff1a;\u8fde\u7eed\u5199\u516510\u5b57\u8282\u6570\u636e\u65f6&#xff0c;\u53ef\u80fd\u6682\u5b58\u7f13\u51b2\u533a\u76f4\u81f3\u8fbe\u5230512\u5b57\u8282&#xff08;\u5178\u578b\u7f13\u51b2\u533a\u5927\u5c0f&#xff09;\u624d\u5b9e\u9645\u5199\u76d8<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u8f93\u5165\u7f13\u51b2&#xff08;\u78c1\u76d8\u2192\u5185\u5b58&#xff09;<\/p>\n<ul>\n<li>\u7cfb\u7edf\u4ece\u78c1\u76d8\u9884\u8bfb\u6570\u636e\u5757&#xff08;\u5982512\u5b57\u8282&#xff09;\u5230\u7f13\u51b2\u533a<\/li>\n<li>\u7a0b\u5e8f\u8bfb\u53d6\u6570\u636e\u65f6\u76f4\u63a5\u4ece\u7f13\u51b2\u533a\u83b7\u53d6&#xff0c;\u907f\u514d\u9891\u7e41\u78c1\u76d8\u8bbf\u95ee<\/li>\n<li>\u793a\u4f8b&#xff1a;fgetc()\u5b9e\u9645\u53ef\u80fd\u5df2\u9884\u52a0\u8f7d\u4e86\u540e\u7eed511\u4e2a\u5b57\u7b26\u5230\u5185\u5b58<\/li>\n<\/ul>\n<\/li>\n<h4>3&#xff09;\u7f13\u51b2\u533a\u7279\u6027<\/h4>\n<ul>\n<li>\u81ea\u52a8\u7ba1\u7406&#xff1a;\u7531C\u8fd0\u884c\u65f6\u5e93\u7ef4\u62a4&#xff0c;\u7a0b\u5e8f\u5458\u65e0\u9700\u624b\u52a8\u5e72\u9884<\/li>\n<li>\u5927\u5c0f\u4e0d\u53ef\u89c1&#xff1a;\u7f13\u51b2\u533a\u5bb9\u91cf\u53d6\u51b3\u4e8e\u7f16\u8bd1\u5668\u5b9e\u73b0&#xff08;\u901a\u5e38512\u5b57\u8282\u62164KB&#xff09;<\/li>\n<li>\u5237\u65b0\u6761\u4ef6&#xff1a;\n<ul>\n<li>\u7f13\u51b2\u533a\u6ee1<\/li>\n<li>\u8c03\u7528fflush()<\/li>\n<li>\u6587\u4ef6\u5173\u95ed&#xff08;fclose()&#xff09;<\/li>\n<li>\u7a0b\u5e8f\u6b63\u5e38\u7ec8\u6b62<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h4>4&#xff09;\u7f13\u51b2\u7c7b\u578b\u5bf9\u6bd4<\/h4>\n<table>\n<tr>\u7f13\u51b2\u6a21\u5f0f\u7279\u6027\u8bbe\u7f6e\u65b9\u6cd5<\/tr>\n<tbody>\n<tr>\n<td>\u5168\u7f13\u51b2<\/td>\n<td>\u7f13\u51b2\u533a\u6ee1\u65f6\u5237\u65b0&#xff08;\u9ed8\u8ba4\u7528\u4e8e\u78c1\u76d8\u6587\u4ef6&#xff09;<\/td>\n<td>setvbuf(fp, buf, _IOFBF, size)<\/td>\n<\/tr>\n<tr>\n<td>\u884c\u7f13\u51b2<\/td>\n<td>\u9047\u5230\u6362\u884c\u7b26\\\\n\u65f6\u5237\u65b0&#xff08;\u7528\u4e8e\u7ec8\u7aef&#xff09;<\/td>\n<td>setvbuf(fp, buf, _IOLBF, size)<\/td>\n<\/tr>\n<tr>\n<td>\u65e0\u7f13\u51b2<\/td>\n<td>\u7acb\u5373\u8f93\u51fa&#xff08;\u7528\u4e8e\u9519\u8bef\u6d41stderr&#xff09;<\/td>\n<td>setvbuf(fp, buf, _IONBF, 0)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h4>5&#xff09;\u7f16\u7a0b\u6ce8\u610f\u4e8b\u9879<\/h4>\n<li>\u6570\u636e\u5b8c\u6574\u6027&#xff1a;\u91cd\u8981\u6570\u636e\u5e94\u624b\u52a8fflush()&#xff0c;\u907f\u514d\u7a0b\u5e8f\u5d29\u6e83\u5bfc\u81f4\u7f13\u51b2\u6570\u636e\u4e22\u5931<\/li>\n<li>\u6027\u80fd\u6743\u8861&#xff1a;<span class=\"token comment\">\/\/ \u7981\u7528\u7f13\u51b2\u53ef\u964d\u4f4e\u5ef6\u8fdf&#xff0c;\u4f46\u589e\u52a0I\/O\u6b21\u6570<\/span><br \/>\n<span class=\"token function\">setvbuf<\/span><span class=\"token punctuation\">(<\/span>fp<span class=\"token punctuation\">,<\/span> <span class=\"token constant\">NULL<\/span><span class=\"token punctuation\">,<\/span> _IONBF<span class=\"token punctuation\">,<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n <\/li>\n<li>\u8de8\u5e73\u53f0\u5dee\u5f02&#xff1a;Windows\u6362\u884c\u7b26\\\\r\\\\n\u5728\u6587\u672c\u6a21\u5f0f\u4e0b\u4f1a\u8f6c\u6362\u4e3a\\\\n&#xff0c;\u53ef\u80fd\u5f71\u54cd\u7f13\u51b2\u8ba1\u6570<\/li>\n<p>\u5173\u952e\u7406\u89e3&#xff1a;\u7f13\u51b2\u7cfb\u7edf\u5982\u540c\u5feb\u9012\u96c6\u8d27\u7ad9\u2014\u2014\u5c0f\u4ef6\u5305\u88f9\u5148\u6682\u5b58&#xff0c;\u6512\u591f\u4e00\u8f66\u518d\u7edf\u4e00\u53d1\u8d27&#xff0c;\u8fd9\u79cd\u6279\u5904\u7406\u601d\u60f3\u8d2f\u7a7f\u8ba1\u7b97\u673a\u7cfb\u7edf\u8bbe\u8ba1\u3002<\/p>\n<hr \/>\n<h2>\u7ed3\u8bed&#xff1a;\u638c\u63e1\u6587\u4ef6\u64cd\u4f5c&#xff0c;\u89e3\u9501C\u8bed\u8a00\u7f16\u7a0b\u65b0\u5883\u754c<\/h2>\n<p>\u901a\u8fc7\u672c\u6587\u7684\u7cfb\u7edf\u8bb2\u89e3&#xff0c;\u76f8\u4fe1\u60a8\u5df2\u7ecf\u5bf9C\u8bed\u8a00\u6587\u4ef6\u64cd\u4f5c\u6709\u4e86\u5168\u9762\u6df1\u5165\u7684\u7406\u89e3\u3002\u4ece\u57fa\u7840\u7684\u6587\u4ef6\u6253\u5f00\u6a21\u5f0f\u5230\u9ad8\u6548\u7684\u968f\u673a\u8bfb\u5199&#xff0c;\u518d\u5230\u5173\u952e\u7684\u7f13\u51b2\u673a\u5236&#xff0c;\u8fd9\u4e9b\u77e5\u8bc6\u5c06\u5e2e\u52a9\u60a8&#xff1a;<\/p>\n<li>\u63d0\u5347\u7a0b\u5e8f\u6548\u7387&#xff1a;\u5408\u7406\u5229\u7528\u7f13\u51b2\u673a\u5236\u53ef\u663e\u8457\u4f18\u5316I\/O\u6027\u80fd<\/li>\n<li>\u589e\u5f3a\u6570\u636e\u63a7\u5236\u529b&#xff1a;\u7cbe\u51c6\u7684\u6587\u4ef6\u5b9a\u4f4d\u8ba9\u6570\u636e\u5904\u7406\u66f4\u52a0\u7075\u6d3b<\/li>\n<li>\u907f\u514d\u5e38\u89c1\u9677\u9631&#xff1a;\u7406\u89e3\u6587\u672c\/\u4e8c\u8fdb\u5236\u6a21\u5f0f\u5dee\u5f02&#xff0c;\u89c4\u907f\u8de8\u5e73\u53f0\u517c\u5bb9\u6027\u95ee\u9898<\/li>\n<p>\u8bb0\u4f4f&#xff0c;\u4f18\u79c0\u7684\u7a0b\u5e8f\u5458\u4e0d\u4ec5\u8981\u8ba9\u4ee3\u7801&#034;\u80fd\u5de5\u4f5c&#034;&#xff0c;\u66f4\u8981\u8ba9\u7a0b\u5e8f&#034;\u5de5\u4f5c\u5f97\u597d&#034;\u3002\u6587\u4ef6\u64cd\u4f5c\u4f5c\u4e3a\u6570\u636e\u6301\u4e45\u5316\u7684\u6838\u5fc3\u6280\u80fd&#xff0c;\u503c\u5f97\u60a8\u53cd\u590d\u5b9e\u8df5\u548c\u6df1\u5165\u94bb\u7814\u3002<\/p>\n<p>\u4e0b\u4e00\u6b65\u5efa\u8bae&#xff1a;<\/p>\n<ul>\n<li>\u5c1d\u8bd5\u5b9e\u73b0\u4e00\u4e2a\u7b80\u5355\u7684\u6587\u4ef6\u6570\u636e\u5e93<\/li>\n<li>\u5bf9\u6bd4\u4e0d\u540c\u7f13\u51b2\u7b56\u7565\u7684\u6027\u80fd\u5dee\u5f02<\/li>\n<li>\u63a2\u7d22\u5185\u5b58\u6620\u5c04\u6587\u4ef6\u7b49\u9ad8\u7ea7\u6280\u672f<\/li>\n<\/ul>\n<p>\u613f\u60a8\u5728C\u8bed\u8a00\u6587\u4ef6\u64cd\u4f5c\u7684\u4e16\u754c\u91cc\u6e38\u5203\u6709\u4f59&#xff0c;\u8ba9\u6570\u636e\u6d41\u52a8\u66f4\u52a0\u4f18\u96c5\u9ad8\u6548&#xff01;\u5982\u6709\u4efb\u4f55\u95ee\u9898&#xff0c;\u6b22\u8fce\u5728\u8bc4\u8bba\u533a\u4ea4\u6d41\u8ba8\u8bba\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb1k\u6b21\uff0c\u70b9\u8d5e82\u6b21\uff0c\u6536\u85cf65\u6b21\u3002\u672c\u6587\u5168\u9762\u4ecb\u7ecd\u4e86C\u8bed\u8a00\u4e2d\u7684\u6587\u4ef6\u64cd\u4f5c\uff0c\u4ece\u57fa\u672c\u6982\u5ff5\u5230\u5b9e\u9645\u5e94\u7528\u3002\u4e3b\u8981\u5185\u5bb9\u5305\u62ec\uff1a\u6587\u4ef6\u7684\u6982\u5ff5\u4e0e\u5206\u7c7b\uff08\u7a0b\u5e8f\u6587\u4ef6\/\u6570\u636e\u6587\u4ef6\uff09\u3001\u6587\u4ef6\u540d\u7ec4\u6210\u3001\u6587\u672c\u6587\u4ef6\u4e0e\u4e8c\u8fdb\u5236\u6587\u4ef6\u7684\u533a\u522b\uff1b\u8be6\u7ec6\u8bb2\u89e3\u4e86\u6587\u4ef6\u7684\u6253\u5f00\u4e0e\u5173\u95ed\u65b9\u6cd5\uff0c\u5305\u62ec\u5404\u79cd\u6253\u5f00\u6a21\u5f0f\uff08r\/w\/a\u7b49\uff09\u548c\u8def\u5f84\u8bbe\u7f6e\u6280\u5de7\uff1b\u91cd\u70b9\u9610\u8ff0\u4e86\u987a\u5e8f\u8bfb\u5199\u51fd\u6570\uff08\u5982fgetc\/fputc\u7b49\uff09\u7684\u4f7f\u7528\u573a\u666f\u53ca\u6ce8\u610f\u4e8b\u9879\u3002\u6587\u7ae0\u8bed\u8a00\u751f\u52a8\u5e7d\u9ed8\uff0c\u901a\u8fc7&quot;\u521b\u9020\u5b87\u5b99&quot;&quot;\u65f6\u7a7a\u7a7f\u68ad&quot;\u7b49\u6bd4\u55bb\u5e2e\u52a9\u7406\u89e3\u6587\u4ef6\u64cd\u4f5c\u7684\u91cd\u8981\u6027\uff0c\u5f3a\u8c03\u6587\u4ef6\u6301\u4e45\u5316\u5b58\u50a8\u7684\u4ef7\u503c\uff0c\u5e76\u63d0\u9192\u8bfb\u8005\u6ce8\u610f\u6587\u4ef6\u5173\u95ed\u548c\u9519\u8bef\u5904\u7406\u7b49\u7ec6\u8282\u3002<\/p>\n","protected":false},"author":2,"featured_media":48736,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[4715,174,190],"topic":[],"class_list":{"0":"post-48742","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","6":"hentry","7":"category-server","8":"tag-c","10":"tag-190"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u4ece\u201c\u6587\u4ef6\u5c0f\u767d\u201c\u5230\u201cIO\u5927\u4fa0\u201c\uff1aC\u8bed\u8a00\u6587\u4ef6\u64cd\u4f5c\u5168\u653b\u7565 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/48742.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u4ece\u201c\u6587\u4ef6\u5c0f\u767d\u201c\u5230\u201cIO\u5927\u4fa0\u201c\uff1aC\u8bed\u8a00\u6587\u4ef6\u64cd\u4f5c\u5168\u653b\u7565 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"og:description\" 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