{"id":67638,"date":"2026-01-29T01:33:11","date_gmt":"2026-01-28T17:33:11","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/67638.html"},"modified":"2026-01-29T01:33:11","modified_gmt":"2026-01-28T17:33:11","slug":"c-%e8%af%ad%e8%a8%80%e5%ad%a6%e4%b9%a0%e5%8e%86%e7%a8%8b%ef%bc%9a%ef%bc%88%e7%ac%ac%e5%85%ad%e7%ab%a0%ef%bc%89%e5%87%bd%e6%95%b0%e3%83%bb%e7%a8%8b%e5%ba%8f%e4%b8%ad%e7%9a%84%e9%80%bb%e8%be%91%e5%b0%81","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/67638.html","title":{"rendered":"C \u8bed\u8a00\u5b66\u4e60\u5386\u7a0b\uff1a\uff08\u7b2c\u516d\u7ae0\uff09\u51fd\u6570\u30fb\u7a0b\u5e8f\u4e2d\u7684\u903b\u8f91\u5c01\u88c5\u827a\u672f"},"content":{"rendered":"<h2>\u7b2c\u516d\u7ae0&#xff1a;\u51fd\u6570<\/h2>\n<\/p>\n<h4>\u6587\u7ae0\u76ee\u5f55<\/h4>\n<ul>\n<li>\u7b2c\u516d\u7ae0&#xff1a;\u51fd\u6570<\/li>\n<li>\n<ul>\n<li>1. \u5e93\u51fd\u6570<\/li>\n<li>2. \u81ea\u5b9a\u4e49\u51fd\u6570<\/li>\n<li>\n<ul>\n<li>2.1 \u5f62\u53c2\u548c\u5b9e\u53c2<\/li>\n<li>2.2 return \u8bed\u53e5<\/li>\n<li>2.3 \u6570\u7ec4\u505a\u51fd\u6570\u53c2\u6570<\/li>\n<\/ul>\n<\/li>\n<li>3. \u5d4c\u5957\u8c03\u7528\u548c\u94fe\u5f0f\u8bbf\u95ee<\/li>\n<li>\n<ul>\n<li>3.1 \u5d4c\u5957\u8c03\u7528<\/li>\n<li>3.2 \u94fe\u5f0f\u8bbf\u95ee<\/li>\n<\/ul>\n<\/li>\n<li>4. \u51fd\u6570\u58f0\u660e\u548c\u5b9a\u4e49<\/li>\n<li>\n<ul>\n<li>4.1 \u5355\u4e2a\u6587\u4ef6<\/li>\n<li>4.2 \u591a\u4e2a\u6587\u4ef6<\/li>\n<li>4.3 \u5173\u952e\u5b57\u4f7f\u7528<\/li>\n<li>\n<ul>\n<li>4.3.1 extern<\/li>\n<li>4.3.2 static<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li>\u58f0\u660e<\/li>\n<\/ul>\n<hr \/>\n<p>C \u8bed\u8a00\u4e2d\u7684\u51fd\u6570\u5c31\u662f\u4e00\u4e2a\u5b8c\u6210\u67d0\u9879\u7279\u5b9a\u4efb\u52a1\u7684\u4e00\u5c0f\u6bb5\u4ee3\u7801\u3002<\/p>\n<h3>1. \u5e93\u51fd\u6570<\/h3>\n<p>\u4e0d\u540c\u7f16\u8bd1\u5668\u63d0\u4f9b\u7684\u4e00\u7cfb\u5217\u51fd\u6570\u7684\u5b9e\u73b0&#xff0c;\u5c31\u88ab\u79f0\u4e3a\u5e93\u51fd\u6570\u3002\u8fd9\u4e9b\u5e93\u51fd\u6570\u6839\u636e\u529f\u80fd\u7684\u5212\u5206&#xff0c;\u90fd\u5728\u4e0d\u540c\u7684\u5934\u6587\u4ef6\u4e2d\u8fdb\u884c\u58f0\u660e\u3002<\/p>\n<p>\u5e93\u51fd\u6570\u76f8\u5173\u5934\u6587\u4ef6&#xff1a;C Standard Library headers &#8211; cppreference.com<\/p>\n<h3>2. \u81ea\u5b9a\u4e49\u51fd\u6570<\/h3>\n<p>\u8bed\u6cd5\u5f62\u5f0f<\/p>\n<p>\u51fd\u6570\u8fd4\u56de\u7c7b\u578b \u51fd\u6570\u540d<span class=\"token punctuation\">(<\/span>\u5f62\u5f0f\u53c2\u6570<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><\/p>\n<p><span class=\"token punctuation\">}<\/span><\/p>\n<h4>2.1 \u5f62\u53c2\u548c\u5b9e\u53c2<\/h4>\n<ul>\n<li>\u5f62\u53c2&#xff1a;\u5728\u81ea\u5b9a\u4e49\u51fd\u6570\u7684\u62ec\u53f7\u4e2d\u5199\u7684\u53c2\u6570&#xff0c;\u79f0\u4e3a\u5f62\u5f0f\u53c2\u6570<\/li>\n<li>\u5b9e\u53c2&#xff1a;\u771f\u662f\u4f20\u9012\u7ed9\u51fd\u6570\u7684\u53c2\u6570<\/li>\n<li>\u51fd\u6570\u7684\u5f62\u5f0f\u53c2\u6570\u8981\u548c\u548c\u5b9e\u53c2\u4e2a\u6570\u5339\u914d<\/li>\n<\/ul>\n<p><font color=\"red\">\u53ea\u6709\u5728\u51fd\u6570\u88ab\u8c03\u7528\u7684\u8fc7\u7a0b\u4e2d\u5b58\u653e\u5b9e\u53c2\u4f20\u9012\u8fc7\u6765\u7684\u503c&#xff0c;\u624d\u4f1a\u5411\u5185\u5b58\u7533\u8bf7\u7a7a\u95f4<\/font><\/p>\n<p>\u52a0\u6cd5\u51fd\u6570&#xff0c;\u5b8c\u6210\u4e24\u4e2a\u6574\u5f62\u53d8\u91cf\u7684\u52a0\u6cd5\u64cd\u4f5c&#xff1a;<\/p>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">define<\/span> <span class=\"token macro-name\">_CRT_SECURE_NO_WARNINGS<\/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;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;stdbool.h&gt;<\/span><\/span><\/p>\n<p><span class=\"token comment\">\/\/\u7b2c\u516d\u7ae0&#xff1a;\u51fd\u6570<\/span><\/p>\n<p><span class=\"token comment\">\/\/\u6b64\u65f6\u662f\u5f62\u53c2&#xff0c;\u5728\u4e0d\u8c03\u7528\u6b64\u51fd\u6570\u65f6&#xff0c;\u4e0d\u4f1a\u5206\u914d\u5185\u5b58\u7a7a\u95f4&#xff0c;<\/span><br \/>\n<span class=\"token comment\">\/\/\u5f53\u8c03\u7528\u51fd\u6570\u65f6&#xff0c;\u5f62\u53c2\u4fbf\u4f1a\u5206\u914d\u5185\u5b58\u7a7a\u95f4&#xff08;\u548c\u5b9e\u53c2\u5404\u81ea\u6709\u72ec\u7acb\u7684\u7a7a\u95f4&#xff09;<\/span><br \/>\n<span class=\"token keyword\">int<\/span> <span class=\"token function\">add<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> a<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">int<\/span> b<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token keyword\">return<\/span> a <span class=\"token operator\">&#043;<\/span> b<span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u5c06a&#043;b\u7684\u503c\u8fd4\u56de\u51fa\u53bb<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><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\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">int<\/span> b <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">int<\/span> c <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">add<\/span><span class=\"token punctuation\">(<\/span>a<span class=\"token punctuation\">,<\/span> b<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u8c03\u7528\u51fd\u6570&#xff0c;\u5c06\u53d8\u91cf\u4f20\u9012\u8fdb\u53bb&#xff0c;\u6b64\u65f6\u662f\u5b9e\u53c2<\/span><br \/>\n<span class=\"token function\">scanf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;%d&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>c<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u4e24\u4e2a\u6570\u4e4b\u548c\u662f&#xff1a;%d&#034;<\/span><span class=\"token punctuation\">,<\/span> c<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><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>2.2 return \u8bed\u53e5<\/h4>\n<ul>\n<li>return\u540e\u8fb9\u53ef\u4ee5\u662f\u2f00\u4e2a\u6570\u503c&#xff0c;\u4e5f\u53ef\u4ee5\u662f\u2f00\u4e2a\u8868\u8fbe\u5f0f&#xff0c;\u5982\u679c\u662f\u8868\u8fbe\u5f0f\u5219\u5148\u6267\u2f8f\u8868\u8fbe\u5f0f&#xff0c;\u518d\u8fd4\u56de\u8868\u8fbe\u5f0f \u7684\u7ed3\u679c\u3002<\/li>\n<li>return\u540e\u8fb9\u4e5f\u53ef\u4ee5\u4ec0\u4e48\u90fd\u6ca1\u6709&#xff0c;\u76f4\u63a5\u5199 return; \u8fd9\u79cd\u5199\u6cd5\u9002\u5408\u51fd\u6570\u8fd4\u56de\u7c7b\u578b\u662fvoid\u7684\u60c5\u51b5\u3002<\/li>\n<li>return\u8bed\u53e5\u6267\u2f8f\u540e&#xff0c;\u51fd\u6570\u5c31\u5f7b\u5e95\u8fd4\u56de&#xff0c;\u540e\u8fb9\u7684\u4ee3\u7801\u4e0d\u518d\u6267\u2f8f\u3002<\/li>\n<li>return\u8fd4\u56de\u7684\u503c\u548c\u51fd\u6570\u8fd4\u56de\u7c7b\u578b\u4e0d\u2f00\u81f4&#xff0c;\u7cfb\u7edf\u4f1a\u2f83\u52a8\u5c06\u8fd4\u56de\u7684\u503c\u9690\u5f0f\u8f6c\u6362\u4e3a\u51fd\u6570\u7684\u8fd4\u56de\u7c7b\u578b\u3002<\/li>\n<li>\u5982\u679c\u51fd\u6570\u4e2d\u5b58\u5728if\u7b49\u5206\u2f40\u7684\u8bed\u53e5&#xff0c;\u5219\u8981\u4fdd\u8bc1\u6bcf\u79cd\u60c5\u51b5\u4e0b\u90fd\u6709return\u8fd4\u56de&#xff0c;\u5426\u5219\u4f1a\u51fa\u73b0\u7f16\u8bd1\u9519\u8bef\u3002<\/li>\n<li>\u51fd\u6570\u7684\u8fd4\u56de\u7c7b\u578b\u5982\u679c\u4e0d\u5199&#xff0c;\u7f16\u8bd1\u5668\u4f1a\u9ed8\u8ba4\u51fd\u6570\u7684\u8fd4\u56de\u7c7b\u578b\u662fint\u3002<\/li>\n<li>\u51fd\u6570\u5199\u4e86\u8fd4\u56de\u7c7b\u578b&#xff0c;\u4f46\u662f\u51fd\u6570\u4e2d\u6ca1\u6709\u4f7f\u2f64return\u8fd4\u56de\u503c&#xff0c;\u90a3\u4e48\u51fd\u6570\u7684\u8fd4\u56de\u503c\u662f\u672a\u77e5\u7684\u3002<\/li>\n<\/ul>\n<h4>2.3 \u6570\u7ec4\u505a\u51fd\u6570\u53c2\u6570<\/h4>\n<ul>\n<li>\u51fd\u6570\u7684\u5b9e\u53c2\u662f\u6570\u7ec4&#xff0c;\u5f62\u53c2\u4e5f\u662f\u53ef\u4ee5\u5199\u6210\u6570\u7ec4\u5f62\u5f0f\u7684<\/li>\n<li>\u5f62\u53c2\u5982\u679c\u662f\u2f00\u7ef4\u6570\u7ec4&#xff0c;\u6570\u7ec4\u2f24\u2f29\u53ef\u4ee5\u7701\u7565\u4e0d\u5199<\/li>\n<li>\u5f62\u53c2\u5982\u679c\u662f\u2f06\u7ef4\u6570\u7ec4&#xff0c;\u2f8f\u53ef\u4ee5\u7701\u7565&#xff0c;\u4f46\u662f\u5217\u4e0d\u80fd\u7701\u7565<\/li>\n<li><font color=\"red\">\u6570\u7ec4\u4f20\u53c2&#xff0c;\u5f62\u53c2\u662f\u4e0d\u4f1a\u521b\u5efa\u65b0\u7684\u6570\u7ec4\u7684 <\/font><\/li>\n<li><font color=\"red\">\u5f62\u53c2\u64cd\u4f5c\u7684\u6570\u7ec4\u548c\u5b9e\u53c2\u7684\u6570\u7ec4\u662f\u540c\u2f00\u4e2a\u6570\u7ec4<\/font><\/li>\n<\/ul>\n<p>\u5199\u4e00\u4e2a\u51fd\u6570\u5c06\u4e00\u4e2a\u6574\u5f62\u6570\u7ec4\u7684\u5185\u5bb9&#xff0c;\u5168\u90e8\u7f6e\u4e3a -1&#xff0c;\u518d\u5199\u4e00\u4e2a\u51fd\u6570\u6253\u5370\u6570\u7ec4\u5185\u5bb9<\/p>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">define<\/span> <span class=\"token macro-name\">_CRT_SECURE_NO_WARNINGS<\/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;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;stdbool.h&gt;<\/span><\/span><\/p>\n<p><span class=\"token comment\">\/\/\u6570\u7ec4\u505a\u51fd\u6570\u53c2\u6570&#xff0c;\u6570\u7ec4\u7684\u5b9e\u53c2\u548c\u5f62\u53c2\u662f\u540c\u4e00\u5757\u5185\u5b58\u7a7a\u95f4<\/span><br \/>\n<span class=\"token comment\">\/\/\u5c06\u6570\u7ec4\u5185\u5bb9\u5168\u90e8\u7f6e\u6362\u4e3a -1<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">set_arr<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> arr<span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">int<\/span> sz<span class=\"token punctuation\">)<\/span><span class=\"token comment\">\/\/\u6b64\u65f6\u4e0d\u8bbe\u7f6e\u957f\u5ea6&#xff0c;\u6839\u636e\u4f20\u8fc7\u6765\u7684\u5927\u5c0f\u5e95\u5c42\u81ea\u52a8\u63a8\u65ad<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/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> sz<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 \/>\narr<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token operator\">&#8211;<\/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 punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/\/\u6253\u5370\u6570\u7ec4<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">print_arr<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> arr<span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">int<\/span> sz<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/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> sz<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><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><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\">\/\/\u5b9a\u4e49\u6570\u7ec4<\/span><br \/>\n<span class=\"token keyword\">int<\/span> arr<span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/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 number\">10<\/span> <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token comment\">\/\/\u8ba1\u7b97\u6570\u7ec4\u957f\u5ea6<\/span><br \/>\n<span class=\"token keyword\">int<\/span> sz <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">sizeof<\/span><span class=\"token punctuation\">(<\/span>arr<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">\/<\/span> <span class=\"token keyword\">sizeof<\/span><span class=\"token punctuation\">(<\/span>arr<span class=\"token punctuation\">[<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token comment\">\/\/\u8c03\u7528\u7f6e\u6362\u6570\u7ec4\u51fd\u6570<\/span><br \/>\n<span class=\"token function\">set_arr<\/span><span class=\"token punctuation\">(<\/span>arr<span class=\"token punctuation\">,<\/span>sz<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token comment\">\/\/\u8c03\u7528\u6253\u5370\u6570\u7ec4\u51fd\u6570<\/span><br \/>\n<span class=\"token function\">print_arr<\/span><span class=\"token punctuation\">(<\/span>arr<span class=\"token punctuation\">,<\/span>sz<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><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<h3>3. \u5d4c\u5957\u8c03\u7528\u548c\u94fe\u5f0f\u8bbf\u95ee<\/h3>\n<h4>3.1 \u5d4c\u5957\u8c03\u7528<\/h4>\n<p>\u51fd\u6570\u4e4b\u95f4\u7684\u4e92\u76f8\u8c03\u7528\u79f0\u4e3a\u5d4c\u5957\u8c03\u7528\u3002<\/p>\n<p>\u5b9e\u73b0\u8ba1\u7b97\u67d0\u5e74\u67d0\u6708\u6709\u591a\u5c11\u5929&#xff1a;<\/p>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">define<\/span> <span class=\"token macro-name\">_CRT_SECURE_NO_WARNINGS<\/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;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;stdbool.h&gt;<\/span><\/span><\/p>\n<p><span class=\"token comment\">\/\/\u5d4c\u5957\u8c03\u7528<\/span><br \/>\n<span class=\"token comment\">\/\/\u5b9a\u4e49\u51fd\u6570\u5224\u65ad\u662f\u5426\u4e3a\u95f0\u5e74<\/span><br \/>\nbool <span class=\"token function\">is_leap_year<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> year<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span>year <span class=\"token operator\">%<\/span> <span class=\"token number\">4<\/span> <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token number\">0<\/span> <span class=\"token operator\">&amp;&amp;<\/span> year <span class=\"token operator\">%<\/span> <span class=\"token number\">100<\/span> <span class=\"token operator\">!&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">||<\/span> year <span class=\"token operator\">%<\/span> <span class=\"token number\">400<\/span> <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token keyword\">return<\/span> true<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token keyword\">return<\/span> false<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/\/\u5b9a\u4e49\u51fd\u6570\u8ba1\u7b97\u67d0\u5e74\u67d0\u6708\u6709\u591a\u5c11\u5929<\/span><br \/>\n<span class=\"token keyword\">int<\/span> <span class=\"token function\">get_days<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> year<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">int<\/span> month<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token comment\">\/\/   0  1  2  3  4  5  6  7  8  9 10 11 12<\/span><br \/>\n<span class=\"token keyword\">int<\/span> days<span class=\"token punctuation\">[<\/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\">31<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">28<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">31<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">30<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">31<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">30<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">31<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">31<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">30<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">31<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">30<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">31<\/span> <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u524d\u9762\u88650&#xff0c;\u65b9\u4fbf\u6708\u4efd\u548c\u4e0b\u6807\u5bf9\u5e94<\/span><\/p>\n<p><span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token function\">is_leap_year<\/span><span class=\"token punctuation\">(<\/span>year<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&amp;&amp;<\/span> month <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token number\">2<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token comment\">\/\/\u5d4c\u5957\u8c03\u7528\u5224\u65ad\u662f\u5426\u662f\u95f0\u5e74\u548c2\u6708<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\ndays<span class=\"token punctuation\">[<\/span>month<span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#043;&#061;<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u5982\u679c\u662f\u95f0\u5e742\u6708&#xff0c;\u5219\u5929\u6570\u52a01<\/span><\/p>\n<p><span class=\"token keyword\">return<\/span> days<span class=\"token punctuation\">[<\/span>month<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">return<\/span> days<span class=\"token punctuation\">[<\/span>month<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u4e0d\u662f\u95f0\u5e74&#xff0c;\u5219\u76f4\u63a5\u8fd4\u56de\u5bf9\u5e94\u6708\u4efd\u7684\u5929\u6570<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><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> year <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">int<\/span> month <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token function\">scanf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;%d%d&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>year<span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>month<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">int<\/span> days <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">get_days<\/span><span class=\"token punctuation\">(<\/span>year<span class=\"token punctuation\">,<\/span>month<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;%d\u5e74%d\u6708\u6709%d\u5929\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> year<span class=\"token punctuation\">,<\/span> month<span class=\"token punctuation\">,<\/span> days<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><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>3.2 \u94fe\u5f0f\u8bbf\u95ee<\/h4>\n<p>\u8c13\u94fe\u5f0f\u8bbf\u95ee\u5c31\u662f\u5c06\u2f00\u4e2a\u51fd\u6570\u7684\u8fd4\u56de\u503c\u4f5c\u4e3a\u53e6\u5916\u2f00\u4e2a\u51fd\u6570\u7684\u53c2\u6570&#xff0c;\u50cf\u94fe\u6761\u2f00\u6837\u5c06\u51fd\u6570\u4e32\u8d77\u6765\u5c31\u662f\u51fd\u6570 \u7684\u94fe\u5f0f\u8bbf\u95ee<\/p>\n<p><span class=\"token comment\">\/\/\u94fe\u5f0f\u8bbf\u95ee<\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">define<\/span> <span class=\"token macro-name\">_CRT_SECURE_NO_WARNINGS<\/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;stdio.h&gt;<\/span><\/span><\/p>\n<p><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\">\/\/printf\u7684\u8fd4\u56de\u503c\u662f\u8f93\u51fa\u5b57\u7b26\u7684\u4e2a\u6570&#xff0c;\u5305\u62ec\u6362\u884c\u7b26\u548c\u7a7a\u683c<\/span><br \/>\n<span class=\"token comment\">\/\/\u8f93\u51fa 43 3 2<\/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> <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;%d &#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;%d &#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">43<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">return<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token punctuation\">}<\/span><\/p>\n<h3>4. \u51fd\u6570\u58f0\u660e\u548c\u5b9a\u4e49<\/h3>\n<h4>4.1 \u5355\u4e2a\u6587\u4ef6<\/h4>\n<p>\u5f53\u6211\u4eec\u5c06\u81ea\u5b9a\u4e49\u7684\u51fd\u6570\u653e\u5728 main \u51fd\u6570\u540e&#xff0c;\u4e5f\u5c31\u662f\u8c03\u7528\u6b64\u51fd\u6570\u4e4b\u540e&#xff0c;\u9700\u8981\u5728\u51fd\u6570\u8c03\u7528\u524d\u58f0\u660e\u4e00\u4e0b\u6b64\u51fd\u6570\u3002<font color=\"red\">\u51fd\u6570\u7684\u8c03\u7528\u8981\u6ee1\u8db3\u5148\u58f0\u660e\u540e\u4f7f\u7528&#xff0c;\u51fd\u6570\u7684\u5b9a\u4e49\u662f\u4e00\u79cd\u7279\u6b8a\u7684\u58f0\u660e\u3002<\/font><\/p>\n<ul>\n<li>\u51fd\u6570\u58f0\u660e&#xff1a;\u51fd\u6570\u8fd4\u56de\u7c7b\u578b \u51fd\u6570\u540d&#xff08;\u51fd\u6570\u53c2\u6570&#xff09;<\/li>\n<\/ul>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">define<\/span> <span class=\"token macro-name\">_CRT_SECURE_NO_WARNINGS<\/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;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;stdbool.h&gt;<\/span><\/span><\/p>\n<p>bool <span class=\"token function\">is_leap_year<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> year<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/\u51fd\u6570\u58f0\u660e<\/span><\/p>\n<p><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> year <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">int<\/span> month <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token function\">scanf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;%d%d&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>year<span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>month<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">int<\/span> days <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">get_days<\/span><span class=\"token punctuation\">(<\/span>year<span class=\"token punctuation\">,<\/span>month<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;%d\u5e74%d\u6708\u6709%d\u5929\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> year<span class=\"token punctuation\">,<\/span> month<span class=\"token punctuation\">,<\/span> days<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><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><span class=\"token comment\">\/\/\u5b9a\u4e49\u51fd\u6570\u5224\u65ad\u662f\u5426\u4e3a\u95f0\u5e74<\/span><br \/>\nbool <span class=\"token function\">is_leap_year<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> year<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span>year <span class=\"token operator\">%<\/span> <span class=\"token number\">4<\/span> <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token number\">0<\/span> <span class=\"token operator\">&amp;&amp;<\/span> year <span class=\"token operator\">%<\/span> <span class=\"token number\">100<\/span> <span class=\"token operator\">!&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">||<\/span> year <span class=\"token operator\">%<\/span> <span class=\"token number\">400<\/span> <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token keyword\">return<\/span> true<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token keyword\">return<\/span> false<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h4>4.2 \u591a\u4e2a\u6587\u4ef6<\/h4>\n<p>\u51fd\u6570\u7684\u58f0\u660e\u548c\u7c7b\u578b\u7684\u58f0\u660e\u653e\u5728\u5934\u6587\u4ef6\u4e2d (.h) &#xff0c;\u51fd\u6570\u7684\u5b9e\u73b0\u653e\u5728\u5176\u4ed6\u6e90\u6587\u4ef6\u4e2d (.c) &#xff0c;\u6b64\u65f6 main \u51fd\u6570\u6240\u5728\u7684\u6e90\u6587\u4ef6\u8981\u5305\u62ec\u81ea\u5b9a\u4e49\u7684\u5934\u6587\u4ef6\u3002<\/p>\n<p>add.h<\/p>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">pragma<\/span> <span class=\"token expression\">once<\/span><\/span><br \/>\n<span class=\"token comment\">\/\/\u5934\u6587\u4ef6\u7528\u4e8e\u58f0\u660e\u51fd\u6570\u3001\u7c7b\u3001\u53d8\u91cf\u7b49&#xff0c;\u9632\u6b62\u91cd\u590d\u5305\u542b<\/span><\/p>\n<p><span class=\"token keyword\">int<\/span> <span class=\"token function\">add<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> a<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">int<\/span> b<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>add.c<\/p>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">define<\/span> <span class=\"token macro-name\">_CRT_SECURE_NO_WARNINGS<\/span><\/span><\/p>\n<p><span class=\"token comment\">\/\/\u51fd\u6570\u7684\u5b9a\u4e49<\/span><\/p>\n<p><span class=\"token keyword\">int<\/span> <span class=\"token function\">add<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> a<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">int<\/span> b<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token comment\">\/\/\u5c06a&#043;b\u7684\u503c\u8fd4\u56de\u51fa\u53bb<\/span><br \/>\n<span class=\"token keyword\">return<\/span> a <span class=\"token operator\">&#043;<\/span> b<span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token punctuation\">}<\/span><\/p>\n<p>test.c<\/p>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">define<\/span> <span class=\"token macro-name\">_CRT_SECURE_NO_WARNINGS<\/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;stdio.h&gt;<\/span><\/span><\/p>\n<p><span class=\"token comment\">\/\/\u5305\u542b\u81ea\u5b9a\u4e49\u5934\u6587\u4ef6&#xff0c;\u6ce8\u610f\u4f7f\u7528\u53cc\u5f15\u53f7 <\/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\">&#034;add.h&#034;<\/span> <\/span><\/p>\n<p><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\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">int<\/span> b <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token function\">scanf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;%d%d&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>a<span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>b<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">int<\/span> c <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">add<\/span><span class=\"token punctuation\">(<\/span>a<span class=\"token punctuation\">,<\/span>b<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;\u548c\u662f&#xff1a;%d\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> c<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h4>4.3 \u5173\u952e\u5b57\u4f7f\u7528<\/h4>\n<p>\u4f5c\u7528\u57df&#xff1a;\u4e00\u6bb5\u7a0b\u5e8f\u4e2d\u6240\u7528\u5230\u7684\u540d\u5b57\u5e76\u4e0d\u662f\u603b\u6709\u6548&#xff0c;\u53ef\u7528\u6027\u7684\u4ee3\u7801\u8303\u56f4\u79f0\u4e3a\u4f5c\u7528\u57df<\/p>\n<ul>\n<li>\u5c40\u90e8\u53d8\u91cf&#xff1a;\u53d8\u91cf\u6240\u5728\u7684\u5c40\u90e8\u8303\u56f4<\/li>\n<li>\u5168\u5c40\u53d8\u91cf&#xff1a;\u6574\u4e2a\u9879\u76ee<\/li>\n<\/ul>\n<p>\u751f\u547d\u5468\u671f&#xff1a;\u53d8\u91cf\u7684\u521b\u5efa&#xff08;\u7533\u8bf7\u5185\u5b58&#xff09;\u5230\u53d8\u91cf\u7684\u9500\u6bc1&#xff08;\u6536\u56de\u5185\u5b58&#xff09;\u4e4b\u95f4\u7684\u4e00\u4e2a\u65f6\u95f4\u6bb5<\/p>\n<ul>\n<li>\u5c40\u90e8\u53d8\u91cf&#xff1a;\u8fdb\u5165\u4f5c\u7528\u57df\u53d8\u91cf\u521b\u5efa&#xff0c;\u751f\u547d\u5468\u671f\u5f00\u59cb&#xff0c;\u51fa\u4f5c\u7528\u57df\u751f\u547d\u5468\u671f\u7ed3\u675f<\/li>\n<li>\u5168\u5c40\u53d8\u91cf&#xff1a;\u6574\u4e2a\u7a0b\u5e8f\u7684\u58f0\u660e\u5468\u671f<\/li>\n<\/ul>\n<h5>4.3.1 extern<\/h5>\n<p>\u7528\u4e8e\u58f0\u660e\u5916\u90e8\u7b26\u53f7&#xff0c;\u5982\u679c\u4e00\u4e2a\u5168\u5c40\u7684\u7b26\u53f7\u5728A\u6587\u4ef6\u4e2d\u5b9a\u4e49&#xff0c;\u5728B\u6587\u4ef6\u4e2d\u60f3\u4f7f\u7528&#xff0c;\u5c31\u9700\u8981\u4f7f\u7528 extern \u8fdb\u884c\u58f0\u660e\u3002<\/p>\n<h5>4.3.2 static<\/h5>\n<p>\u4fee\u9970\u5c40\u90e8\u53d8\u91cf<\/p>\n<p>static \u4fee\u9970\u5c40\u90e8\u53d8\u91cf\u6539\u53d8\u4e86\u53d8\u91cf\u7684\u2f63\u547d\u5468\u671f&#xff0c;\u2f63\u547d\u5468\u671f\u6539\u53d8\u7684\u672c\u8d28\u662f\u6539\u53d8\u4e86\u53d8\u91cf\u7684\u5b58\u50a8\u7c7b\u578b&#xff0c;\u672c\u6765\u2f00\u4e2a\u5c40\u90e8\u53d8\u91cf\u662f\u5b58\u50a8\u5728\u5185\u5b58\u7684\u6808\u533a\u7684&#xff0c;\u4f46\u662f\u88ab static \u4fee\u9970\u540e\u5b58\u50a8\u5230\u4e86\u9759\u6001\u533a\u3002\u5b58\u50a8\u5728\u9759\u6001\u533a\u7684\u53d8\u91cf\u548c\u5168\u5c40\u53d8\u91cf\u662f\u2f00\u6837\u7684&#xff0c;\u2f63\u547d\u5468\u671f\u5c31\u548c\u7a0b\u5e8f\u7684\u2f63\u547d\u5468\u671f\u2f00\u6837\u4e86&#xff0c;\u53ea\u6709\u7a0b\u5e8f\u7ed3\u675f&#xff0c;\u53d8\u91cf\u624d\u9500\u6bc1&#xff0c;\u5185\u5b58\u624d \u56de\u6536\u3002\u4f46\u662f\u4f5c\u7528\u57df\u4e0d\u53d8\u7684\u3002<\/p>\n<p>\u4fee\u9970\u5168\u5c40\u53d8\u91cf\u6216\u51fd\u6570<\/p>\n<p>\u2f00\u4e2a\u5168\u5c40\u53d8\u91cf\u88abstatic\u4fee\u9970&#xff0c;\u4f7f\u5f97\u8fd9\u4e2a\u5168\u5c40\u53d8\u91cf\u53ea\u80fd\u5728\u672c\u6e90\u2f42\u4ef6\u5185\u4f7f\u2f64&#xff0c;\u4e0d\u80fd\u5728\u5176\u4ed6\u6e90\u2f42\u4ef6\u5185\u4f7f\u2f64\u3002 \u672c\u8d28\u539f\u56e0\u662f\u5168\u5c40\u53d8\u91cf\u9ed8\u8ba4\u662f\u5177\u6709\u5916\u90e8\u94fe\u63a5\u5c5e\u6027\u7684&#xff0c;\u5728\u5916\u90e8\u7684\u2f42\u4ef6\u4e2d\u60f3\u4f7f\u2f64&#xff0c;\u53ea\u8981\u9002\u5f53\u7684\u58f0\u660e\u5c31\u53ef\u4ee5\u4f7f\u2f64&#xff1b;\u4f46\u662f\u5168\u5c40\u53d8\u91cf\u88ab static \u4fee\u9970\u4e4b\u540e&#xff0c;\u5916\u90e8\u94fe\u63a5\u5c5e\u6027\u5c31\u53d8\u6210\u4e86\u5185\u90e8\u94fe\u63a5\u5c5e\u6027&#xff0c;\u53ea\u80fd\u5728\u2f83\u2f30\u6240\u5728\u7684\u6e90\u2f42\u4ef6\u5185\u90e8\u4f7f\u2f64\u4e86&#xff0c;\u5176\u4ed6\u6e90\u2f42\u4ef6&#xff0c;\u5373\u4f7f\u58f0\u660e\u4e86&#xff0c;\u4e5f\u662f\u65e0\u6cd5\u6b63\u5e38\u4f7f\u2f64\u7684\u3002<font color=\"red\">\u51fd\u6570\u540c\u7406<\/font><\/p>\n<p>test2.c<\/p>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">define<\/span> <span class=\"token macro-name\">_CRT_SECURE_NO_WARNINGS<\/span><\/span><\/p>\n<p><span class=\"token comment\">\/\/\u5b9a\u4e49\u5168\u5c40\u53d8\u91cf<\/span><br \/>\n<span class=\"token comment\">\/\/\u5168\u5c40\u53d8\u91cf\u9ed8\u8ba4\u5177\u6709\u94fe\u63a5\u5c5e\u6027&#xff0c;\u5176\u4ed6\u6587\u4ef6\u53ef\u4ee5\u901a\u8fc7extern\u8fdb\u884c\u8bbf\u95ee<\/span><br \/>\n<span class=\"token comment\">\/\/\u5982\u679c\u6b64\u65f6\u52a0\u4e0astatic&#xff0c;\u5219\u53d8\u4e3a\u5185\u90e8\u94fe\u63a5\u5c5e\u6027&#xff0c;\u5176\u4ed6\u6e90\u6587\u4ef6\u65e0\u6cd5\u8bbf\u95ee<\/span><br \/>\n<span class=\"token comment\">\/\/\u51fd\u6570\u539f\u7406\u540c\u4e0a<\/span><br \/>\n<span class=\"token keyword\">int<\/span> num <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">10<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>test.c<\/p>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">define<\/span> <span class=\"token macro-name\">_CRT_SECURE_NO_WARNINGS<\/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;stdio.h&gt;<\/span><\/span><\/p>\n<p><span class=\"token comment\">\/\/static \u548c extern\u5173\u952e\u5b57\u7684\u4f7f\u7528<\/span><\/p>\n<p><span class=\"token keyword\">void<\/span> <span class=\"token function\">test<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u51fd\u6570\u58f0\u660e<\/span><br \/>\n<span class=\"token keyword\">extern<\/span> <span class=\"token keyword\">int<\/span> num<span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u58f0\u660e\u5916\u90e8\u53d8\u91cf<\/span><\/p>\n<p><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\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/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\">5<\/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\">test<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;num &#061; %d\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> num<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><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><span class=\"token keyword\">void<\/span> <span class=\"token function\">test<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token comment\">\/\/\u9759\u6001\u53d8\u91cf&#xff0c;\u53ea\u521d\u59cb\u5316\u4e00\u6b21&#xff08;\u5728\u7a0b\u5e8f\u7f16\u8bd1\u65f6&#xff09;&#xff0c;\u4ec5\u6539\u53d8\u751f\u547d\u5468\u671f&#xff0c;\u751f\u547d\u5468\u671f\u4e3a\u6574\u4e2a\u7a0b\u5e8f\u8fd0\u884c\u671f\u95f4<\/span><br \/>\n<span class=\"token comment\">\/\/\u5982\u679c\u4e0d\u52a0\u5165static\u5173\u952e\u5b57&#xff0c;\u5219\u6bcf\u6b21\u8c03\u7528\u53d8\u91cf\u65f6&#xff0c;\u53d8\u91cf\u90fd\u4f1a\u91cd\u65b0\u521d\u59cb\u5316&#xff0c;\u5373\u5c40\u90e8\u53d8\u91cf<\/span><br \/>\n<span class=\"token keyword\">static<\/span> <span class=\"token keyword\">int<\/span> a <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\na<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;%d\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> a<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<hr \/>\n<p>\u6570\u7ec4\u548c\u51fd\u6570\u5b9e\u8df5&#xff1a;\u7b80\u6613\u626b\u96f7\u6e38\u620f\u5b9e\u73b0<\/p>\n<h2>\u58f0\u660e<\/h2>\n<p>\u672c\u6587\u662f\u5728\u9e4f\u54e5 C \u8bed\u8a00\u96c6\u8bad\u8425\u5b66\u4e60\u8fc7\u7a0b\u4e2d\u6240\u8bb0\u5f55\u7684\u5b66\u4e60\u7b14\u8bb0&#xff0c;\u68b3\u7406\u4e86\u6838\u5fc3\u77e5\u8bc6\u70b9&#xff0c;\u540c\u65f6\u4e5f\u8bb0\u5f55\u4e86\u672c\u4eba\u5b9e\u64cd\u9a8c\u8bc1\u7684\u4ee3\u7801\u6848\u4f8b&#xff0c;\u4f9b\u540e\u7eed\u5b66\u4e60\u590d\u76d8\u4f7f\u7528\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u7b2c\u516d\u7ae0&#xff1a;\u51fd\u6570 \u6587\u7ae0\u76ee\u5f55\u7b2c\u516d\u7ae0&#xff1a;\u51fd\u65701. \u5e93\u51fd\u65702. \u81ea\u5b9a\u4e49\u51fd\u65702.1 \u5f62\u53c2\u548c\u5b9e\u53c22.2 return \u8bed\u53e52.3 \u6570\u7ec4\u505a\u51fd\u6570\u53c2\u65703. \u5d4c\u5957\u8c03\u7528\u548c\u94fe\u5f0f\u8bbf\u95ee3.1 \u5d4c\u5957\u8c03\u75283.2 \u94fe\u5f0f\u8bbf\u95ee4. \u51fd\u6570\u58f0\u660e\u548c\u5b9a\u4e494.1 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