{"id":115967,"date":"2026-10-20T15:17:38","date_gmt":"2026-10-20T07:17:38","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/115967.html"},"modified":"2026-10-20T15:17:38","modified_gmt":"2026-10-20T07:17:38","slug":"4-5-%e6%96%87%e4%bb%b6%e8%af%bb%e5%86%99%ef%bc%9a%e8%83%bd%e4%bf%9d%e5%ad%98%e6%95%b0%e6%8d%ae","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/115967.html","title":{"rendered":"4-5 \u6587\u4ef6\u8bfb\u5199\uff1a\u80fd\u4fdd\u5b58\u6570\u636e"},"content":{"rendered":"<h2>4-5 \u6587\u4ef6\u8bfb\u5199&#xff1a;\u80fd\u4fdd\u5b58\u6570\u636e<\/h2>\n<p>\u23f1 \u672c\u8282\u9884\u8ba1\u7528\u65f6&#xff1a;40\u5206\u949f<\/p>\n<p>\u672c\u8282\u610f\u4e49&#xff1a;\u8ba9\u4f60\u7684\u8f6f\u4ef6\u80fd\u4fdd\u5b58\u6570\u636e&#xff01;\u6240\u6709\u8f6f\u4ef6\u5fc5\u7528&#xff01;<\/p>\n<p>\u672c\u8282\u76ee\u6807&#xff1a;\u7406\u89e3\u4e3a\u4ec0\u4e48\u8981\u6587\u4ef6\u8bfb\u5199&#xff1b;\u5b66\u4f1a fopen \/ fprintf \/ fscanf \/ fclose \u56db\u4e2a\u51fd\u6570&#xff0c;\u7ed9\u5b66\u751f\u7ba1\u7406\u7cfb\u7edf\u52a0\u4e0a\u4fdd\u5b58\/\u52a0\u8f7d\u529f\u80fd\u3002<\/p>\n<hr \/>\n<h3>1 \u600e\u4e48\u8ba9\u7a0b\u5e8f\u5173\u4e86\u6570\u636e\u8fd8\u5728<\/h3>\n<p>\u7b80\u5355\u8bf4&#xff1a;\u4f60\u73b0\u5728\u6240\u6709\u5b66\u751f\u90fd\u5b58\u5728\u5185\u5b58\u91cc\u3002\u7a0b\u5e8f\u9000\u51fa&#xff0c;\u64cd\u4f5c\u7cfb\u7edf\u5c31\u628a\u8fd9\u5757\u5185\u5b58\u6536\u56de\u7ed9\u522b\u7684\u7a0b\u5e8f\u7528\u4e86\u2014\u2014\u4e0b\u6b21\u542f\u52a8&#xff0c;\u662f\u4e00\u5757\u5168\u65b0\u7684\u7a7a\u5185\u5b58\u3002<\/p>\n<p>\u8981\u8ba9\u6570\u636e&#034;\u5173\u4e86\u4e5f\u5728&#034;&#xff0c;\u5c31\u5f97\u628a\u5b83\u5b58\u5728\u78c1\u76d8\u4e0a\u3002\u5373\u4fbf\u7a0b\u5e8f\u9000\u51fa\u4e86&#xff0c;\u6570\u636e\u4f9d\u7136\u8eba\u5728\u90a3\u91cc\u3002<\/p>\n<p>\u5b58\u5728\u78c1\u76d8\u4e0a\u7684\u6570\u636e\u5c31\u662f&#034;\u6587\u4ef6&#034;&#xff0c;\u672c\u8d28\u4e0a\u5c31\u662f\u78c1\u76d8\u4e0a\u4e00\u4e32\u4e8c\u8fdb\u5236\u6570\u3002<\/p>\n<p>\u4f60\u60f3\u628a\u5b66\u751f\u5b58\u8fdb\u53bb&#xff0c;\u5c31\u5f97\u628a\u5b66\u751f\u4fe1\u606f\u4e00\u4e2a\u4e2a\u6309\u987a\u5e8f&#034;\u5199&#034;\u5165\u6587\u4ef6&#xff1b;\u60f3\u8bfb\u51fa\u6765&#xff0c;\u5c31\u4e00\u4e2a\u4e2a\u6309\u987a\u5e8f\u4ece\u6587\u4ef6\u4e2d&#034;\u8bfb&#034;\u51fa\u3002<\/p>\n<p>C \u6807\u51c6\u5e93\u5df2\u7ecf\u5e2e\u4f60\u628a\u8bfb\u5199\u6587\u4ef6\u7684\u810f\u6d3b\u7d2f\u6d3b\u5168\u5e72\u4e86&#xff0c;\u6211\u4eec\u53ea\u7528\u8bb0\u8fd9\u51e0\u4e2a\u7b80\u5355\u51fd\u6570&#xff1a;<\/p>\n<table>\n<tr>\u64cd\u4f5c\u51fd\u6570\u7c7b\u6bd4\u4f60\u719f\u6089\u7684<\/tr>\n<tbody>\n<tr>\n<td>\u6253\u5f00\u6587\u4ef6<\/td>\n<td>FILE *fopen(&#034;\u6587\u4ef6\u540d&#034;, &#034;\u6a21\u5f0f&#034;);<\/td>\n<td>\u76f8\u5f53\u4e8e\u7ed9\u6587\u4ef6&#034;\u5f00\u95e8&#034;&#xff0c;\u62ff\u5230\u94a5\u5319 FILE*<\/td>\n<\/tr>\n<tr>\n<td>\u5199\u6587\u4ef6<\/td>\n<td>fprintf(fp, &#034;\u683c\u5f0f\u4e32&#034;, \u53d8\u91cf&#8230;);<\/td>\n<td>\u548c printf \u4e00\u6a21\u4e00\u6837&#xff0c;\u53ea\u662f\u5199\u5230\u6587\u4ef6\u91cc&#xff0c;\u4e0d\u662f\u5c4f\u5e55<\/td>\n<\/tr>\n<tr>\n<td>\u8bfb\u6587\u4ef6<\/td>\n<td>fscanf(fp, &#034;\u683c\u5f0f\u4e32&#034;, &amp;\u53d8\u91cf&#8230;);<\/td>\n<td>\u548c scanf \u4e00\u6a21\u4e00\u6837&#xff0c;\u53ea\u662f\u4ece\u6587\u4ef6\u91cc\u8bfb&#xff0c;\u4e0d\u662f\u952e\u76d8<\/td>\n<\/tr>\n<tr>\n<td>\u5173\u95ed\u6587\u4ef6<\/td>\n<td>fclose(fp);<\/td>\n<td>\u7528\u5b8c\u9501\u95e8&#xff0c;\u5fc5\u987b\u5199<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u5176\u5b9e\u4f60\u5df2\u7ecf\u4f1a\u7528\u4e86&#xff0c;\u8fd9\u4e2a\u548cprintf\/scanf\u5f88\u50cf&#xff0c;\u53ea\u662f\u6362\u4e86\u4e2a\u524d\u7f00&#xff0c;\u52a0\u4e86\u4e2a\u6587\u4ef6\u6307\u9488\u800c\u5df2\u3002<\/p>\n<hr \/>\n<h3>2 \u52a0\u5165\u65b0\u6a21\u5757&#xff1a;fileio<\/h3>\n<p>\u5f00\u59cb\u52a8\u624b\u6539\u3002\u65b0\u5efa\u4e00\u4e2a\u6587\u4ef6\u5939\u653e\u6587\u4ef6\u8bfb\u5199\u7684\u4ee3\u7801&#xff1a;<\/p>\n<p>code\/4-5-\u5b66\u751f\u6210\u7ee9\u7ba1\u7406\u7cfb\u7edf-\u5b58\u6863\u7248\/<br \/>\n\u251c\u2500\u2500 model\/<br \/>\n\u251c\u2500\u2500 view\/<br \/>\n\u251c\u2500\u2500 controller\/<br \/>\n\u251c\u2500\u2500 util\/<br \/>\n\u251c\u2500\u2500 fileio\/     \u2190 \u65b0\u5efa&#xff0c;\u4e13\u95e8\u7ba1\u5b58\u76d8\u8bfb\u76d8<br \/>\n\u2514\u2500\u2500 main.c<\/p>\n<h4>3.1 \u5199\u5934\u6587\u4ef6&#xff1a;\u58f0\u660e\u4e24\u4e2a\u51fd\u6570<\/h4>\n<p>\u65b0\u5efa fileio\/fileio.h&#xff1a;<\/p>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">ifndef<\/span> <span class=\"token expression\">FILEIO_H<\/span><\/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\">FILEIO_H<\/span><\/span><\/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\">&#034;..\/model\/student.h&#034;<\/span><\/span><\/p>\n<p><span class=\"token comment\">\/* \u628a\u6574\u4e2a\u7cfb\u7edf\u5b58\u5230\u6587\u4ef6 students.dat *\/<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">save_system<\/span><span class=\"token punctuation\">(<\/span>StudentSystem <span class=\"token operator\">*<\/span>sys<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 punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/* \u4ece\u6587\u4ef6 students.dat \u52a0\u8f7d\u6574\u4e2a\u7cfb\u7edf&#xff0c;\u6210\u529f\u8fd4\u56de 1&#xff0c;\u5931\u8d25\u8fd4\u56de 0 *\/<\/span><br \/>\n<span class=\"token keyword\">int<\/span> <span class=\"token function\">load_system<\/span><span class=\"token punctuation\">(<\/span>StudentSystem <span class=\"token operator\">*<\/span>sys<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 punctuation\">;<\/span><\/p>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">endif<\/span><\/span><\/p>\n<p>\u6211\u4eec\u8fd9\u91cc\u8fd8\u662f\u56fa\u5b9a\u5bb9\u91cf\u6570\u7ec4&#xff08;10 \u4eba&#xff09;\u2014\u2014\u5bb9\u91cf\u5899\u7559\u5230\u4e0b\u4e00\u8282\u6536\u62fe&#xff0c;\u73b0\u5728\u5148\u628a\u5b58\u76d8\u641e\u5b9a\u3002<\/p>\n<h4>3.2 \u5b9e\u73b0&#xff1a;\u6253\u5f00 \u2192 \u5199 \u2192 \u5173\u95ed<\/h4>\n<p>\u65b0\u5efa fileio\/fileio.c&#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 macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&#034;..\/model\/student.h&#034;<\/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\">&#034;fileio.h&#034;<\/span><\/span><\/p>\n<p><span class=\"token keyword\">void<\/span> <span class=\"token function\">save_system<\/span><span class=\"token punctuation\">(<\/span>StudentSystem <span class=\"token operator\">*<\/span>sys<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><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/* 1. \u5f00\u95e8&#xff1a;&#034;w&#034; &#061; \u5199\u6a21\u5f0f&#xff0c;\u4f1a\u8986\u76d6\u539f\u6709\u5185\u5bb9 *\/<\/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>filename<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><span class=\"token operator\">!<\/span>fp<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>  <span class=\"token comment\">\/* \u6253\u5f00\u5931\u8d25&#xff08;\u6bd4\u5982\u76ee\u5f55\u4e0d\u5b58\u5728&#xff09;\u76f4\u63a5\u8fd4\u56de&#xff0c;\u8fd9\u53e5\u8bdd\u662f\u5fc5\u987b\u7684&#xff0c;\u78c1\u76d8\u6ee1\u4e86\u3001\u6743\u9650\u4e0d\u5bf9\u90fd\u4f1a\u6253\u4e0d\u5f00&#xff0c;\u6253\u4e0d\u5f00\u5c31\u4e0d\u80fd\u5f80\u91cc\u5199\u4e86 *\/<\/span><br \/>\n        <span class=\"token keyword\">return<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/* 2. \u5148\u5199\u5b66\u751f\u603b\u6570&#xff0c;\u518d\u4e00\u4e2a\u5b66\u751f\u4e00\u4e2a\u5b66\u751f\u5199 *\/<\/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;%d\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> sys<span class=\"token operator\">-&gt;<\/span>count<span class=\"token punctuation\">)<\/span><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> sys<span class=\"token operator\">-&gt;<\/span>count<span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        Student <span class=\"token operator\">*<\/span>s <span class=\"token operator\">&#061;<\/span> <span class=\"token operator\">&amp;<\/span>sys<span class=\"token operator\">-&gt;<\/span>students<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token comment\">\/* \u6bcf\u4e2a\u5b66\u751f\u5360\u4e00\u884c&#xff1a;id \u59d3\u540d \u8bed\u6570\u82f1 \u2192 \u7a7a\u683c\u5206\u9694&#xff0c;\u6362\u884c\u7ed3\u5c3e *\/<\/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;%d %s %.1f %.1f %.1f\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span><br \/>\n                s<span class=\"token operator\">-&gt;<\/span>id<span class=\"token punctuation\">,<\/span> s<span class=\"token operator\">-&gt;<\/span>name<span class=\"token punctuation\">,<\/span><br \/>\n                s<span class=\"token operator\">-&gt;<\/span>scores<span class=\"token punctuation\">[<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span> s<span class=\"token operator\">-&gt;<\/span>scores<span class=\"token punctuation\">[<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span> s<span class=\"token operator\">-&gt;<\/span>scores<span class=\"token punctuation\">[<\/span><span class=\"token number\">2<\/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 comment\">\/* 3. \u9501\u95e8 *\/<\/span><br \/>\n    <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 punctuation\">}<\/span><\/p>\n<p>\u6211\u4eec\u8fd9\u91cc&#034;\u5148\u5199 count&#xff0c;\u518d\u6bcf\u884c\u4e00\u4e2a\u5b66\u751f&#034;&#xff0c;\u8bfb\u7684\u65f6\u5019\u4e5f\u5f97\u6309\u8fd9\u4e2a\u987a\u5e8f\u6765\u3002<\/p>\n<h4>3.3 \u8bfb\u6587\u4ef6&#xff1a;\u6253\u5f00 \u2192 \u8bfb \u2192 \u5173\u95ed<\/h4>\n<p>\u8fd8\u662f\u540c\u4e00\u4e2a\u987a\u5e8f&#xff0c;\u53ea\u662f\u6a21\u5f0f\u6539\u6210 &#034;r&#034;&#xff08;\u8bfb&#xff09;&#xff0c;\u7528 fscanf \u4ee3\u66ff fprintf&#xff1a;<\/p>\n<p><span class=\"token keyword\">int<\/span> <span class=\"token function\">load_system<\/span><span class=\"token punctuation\">(<\/span>StudentSystem <span class=\"token operator\">*<\/span>sys<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><br \/>\n<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>filename<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><span class=\"token operator\">!<\/span>fp<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>  <span class=\"token comment\">\/* \u6587\u4ef6\u4e0d\u5b58\u5728&#xff08;\u7b2c\u4e00\u6b21\u542f\u52a8&#xff09;\u76f4\u63a5\u8fd4\u56de\u5931\u8d25 *\/<\/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>    <span class=\"token comment\">\/* \u5148\u8bfb\u5b66\u751f\u603b\u6570 *\/<\/span><br \/>\n    <span class=\"token function\">fscanf<\/span><span class=\"token punctuation\">(<\/span>fp<span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;%d&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>sys<span class=\"token operator\">-&gt;<\/span>count<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/* \u518d\u4e00\u4e2a\u4e2a\u8bfb\u5b66\u751f *\/<\/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> sys<span class=\"token operator\">-&gt;<\/span>count<span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        Student <span class=\"token operator\">*<\/span>s <span class=\"token operator\">&#061;<\/span> <span class=\"token operator\">&amp;<\/span>sys<span class=\"token operator\">-&gt;<\/span>students<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token function\">fscanf<\/span><span class=\"token punctuation\">(<\/span>fp<span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;%d %s %f %f %f&#034;<\/span><span class=\"token punctuation\">,<\/span><br \/>\n                <span class=\"token operator\">&amp;<\/span>s<span class=\"token operator\">-&gt;<\/span>id<span class=\"token punctuation\">,<\/span> s<span class=\"token operator\">-&gt;<\/span>name<span class=\"token punctuation\">,<\/span><br \/>\n                <span class=\"token operator\">&amp;<\/span>s<span class=\"token operator\">-&gt;<\/span>scores<span class=\"token punctuation\">[<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>s<span class=\"token operator\">-&gt;<\/span>scores<span class=\"token punctuation\">[<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>s<span class=\"token operator\">-&gt;<\/span>scores<span class=\"token punctuation\">[<\/span><span class=\"token number\">2<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token comment\">\/* \u8bfb\u5230\u4e86&#xff0c;\u91cd\u65b0\u7b97\u603b\u5206\u5e73\u5747\u5206 *\/<\/span><br \/>\n        <span class=\"token function\">calculate_student_total<\/span><span class=\"token punctuation\">(<\/span>s<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <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\">1<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/* \u6210\u529f *\/<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u8bfb\u5230 id\u3001name\u3001\u4e09\u4e2a\u6210\u7ee9&#xff0c;\u548c\u6211\u4eec\u5199\u7684\u65f6\u5019\u683c\u5f0f\u5b8c\u5168\u4e00\u81f4\u3002\u6ce8\u610f name \u76f4\u63a5\u5199 s-&gt;name&#xff0c;\u4e0d\u7528\u52a0 &amp;\u2014\u2014\u56e0\u4e3a\u6570\u7ec4\u540d\u672c\u8eab\u5c31\u662f\u5730\u5740\u3002<\/p>\n<p>\u8bfb\u5b8c\u6bcf\u4e2a\u5b66\u751f&#xff0c;\u6211\u4eec\u8c03\u7528 calculate_student_total \u91cd\u65b0\u7b97\u603b\u5206\u5e73\u5747\u5206\u2014\u2014\u603b\u5206\u5e73\u5747\u5206\u662f\u7b97\u51fa\u6765\u7684&#xff0c;\u4e0d\u7528\u5b58&#xff0c;\u78c1\u76d8\u53ea\u5b58\u539f\u59cb\u6570\u636e\u5c31\u884c\u3002<\/p>\n<hr \/>\n<h3>4 \u4fee\u6539 main.c&#xff1a;\u542f\u52a8\u52a0\u8f7d&#xff0c;\u9000\u51fa\u4fdd\u5b58<\/h3>\n<p>\u5c31\u6539\u4e09\u5904&#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\">&#034;fileio\/fileio.h&#034;<\/span> <span class=\"token comment\">\/\/ 1.\u52a0\u5165\u5934\u6587\u4ef6\u5f15\u7528<\/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 keyword\">void<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    StudentSystem sys <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 keyword\">int<\/span> choice<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/* 2.\u7a0b\u5e8f\u542f\u52a8\u7b2c\u4e00\u4ef6\u4e8b&#xff1a;\u4ece\u6587\u4ef6\u8bfb\u8fdb\u6765 *\/<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token function\">load_system<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>sys<span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;students.dat&#034;<\/span><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;\u5df2\u52a0\u8f7d\u4e0a\u6b21\u4fdd\u5b58\u7684 %d \u540d\u5b66\u751f\u3002\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> sys<span class=\"token punctuation\">.<\/span>count<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <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 comment\">\/* &#8230; \u83dc\u5355\u5faa\u73af\u4e0d\u53d8 &#8230; *\/<\/span><\/p>\n<p>        <span class=\"token keyword\">switch<\/span> <span class=\"token punctuation\">(<\/span>choice<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token comment\">\/* &#8230; \u5404\u4e2a case \u4e0d\u53d8 &#8230; *\/<\/span><br \/>\n            <span class=\"token keyword\">case<\/span> <span class=\"token number\">7<\/span><span class=\"token operator\">:<\/span><br \/>\n                <span class=\"token comment\">\/* 3.\u9000\u51fa\u524d&#xff1a;\u5b58\u76d8 *\/<\/span><br \/>\n                <span class=\"token function\">save_system<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>sys<span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;students.dat&#034;<\/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;\u6570\u636e\u5df2\u4fdd\u5b58&#xff0c;\u611f\u8c22\u4f7f\u7528&#xff0c;\u518d\u89c1&#xff01;\\\\n&#034;<\/span><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 keyword\">default<\/span><span class=\"token operator\">:<\/span><br \/>\n                <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u00d7 \u65e0\u6548\u8f93\u5165&#xff0c;\u8bf7\u8f93\u5165 1-7&#xff01;\\\\n&#034;<\/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><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u5b8c\u6574 main.c&#xff1a;<\/p>\n<p><span class=\"token comment\">\/* main.c \u2014\u2014 \u6307\u6325&#xff1a;\u542f\u52a8\u52a0\u8f7d&#xff0c;\u9000\u51fa\u4fdd\u5b58 *\/<\/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\">&#034;model\/student.h&#034;<\/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\">&#034;view\/view.h&#034;<\/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\">&#034;util\/input.h&#034;<\/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\">&#034;controller\/controller.h&#034;<\/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\">&#034;fileio\/fileio.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 keyword\">void<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    StudentSystem sys <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 keyword\">int<\/span> choice<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/* \u7a0b\u5e8f\u542f\u52a8\u7b2c\u4e00\u4ef6\u4e8b&#xff1a;\u4ece\u6587\u4ef6\u8bfb\u8fdb\u6765 *\/<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token function\">load_system<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>sys<span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;students.dat&#034;<\/span><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;\\\\n \u5df2\u52a0\u8f7d\u4e0a\u6b21\u4fdd\u5b58\u7684 %d \u540d\u5b66\u751f\u3002\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> sys<span class=\"token punctuation\">.<\/span>count<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <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 function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\\\\n&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061; \u5b66\u751f\u6210\u7ee9\u7ba1\u7406\u7cfb\u7edf &#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;\\\\n&#034;<\/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;  1. \u67e5\u770b\u6240\u6709\u5b66\u751f\\\\n&#034;<\/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;  2. \u6dfb\u52a0\u5b66\u751f\\\\n&#034;<\/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;  3. \u5220\u9664\u5b66\u751f\\\\n&#034;<\/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;  4. \u4fee\u6539\u6210\u7ee9\\\\n&#034;<\/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;  5. \u67e5\u8be2\u5b66\u751f\\\\n&#034;<\/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;  6. \u7edf\u8ba1\u4fe1\u606f\\\\n&#034;<\/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;  7. \u9000\u51fa\\\\n&#034;<\/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;\u8bf7\u9009\u62e9\u64cd\u4f5c&#xff08;1-7&#xff09;&#xff1a;&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        choice <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">read_int<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">7<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token keyword\">switch<\/span> <span class=\"token punctuation\">(<\/span>choice<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token keyword\">case<\/span> <span class=\"token number\">1<\/span><span class=\"token operator\">:<\/span>  <span class=\"token function\">view_show_all<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>sys<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>             <span class=\"token keyword\">break<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">case<\/span> <span class=\"token number\">2<\/span><span class=\"token operator\">:<\/span>  <span class=\"token function\">flow_add_student<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>sys<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>    <span class=\"token keyword\">break<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">case<\/span> <span class=\"token number\">3<\/span><span class=\"token operator\">:<\/span>  <span class=\"token function\">flow_delete_student<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>sys<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token keyword\">break<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">case<\/span> <span class=\"token number\">4<\/span><span class=\"token operator\">:<\/span>  <span class=\"token function\">flow_update_score<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>sys<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>   <span class=\"token keyword\">break<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">case<\/span> <span class=\"token number\">5<\/span><span class=\"token operator\">:<\/span>  <span class=\"token function\">flow_find_student<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>sys<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>   <span class=\"token keyword\">break<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">case<\/span> <span class=\"token number\">6<\/span><span class=\"token operator\">:<\/span>  <span class=\"token function\">view_show_statistics<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>sys<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>      <span class=\"token keyword\">break<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">case<\/span> <span class=\"token number\">7<\/span><span class=\"token operator\">:<\/span>  <span class=\"token function\">save_system<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>sys<span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;students.dat&#034;<\/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;\u6570\u636e\u5df2\u4fdd\u5b58&#xff0c;\u611f\u8c22\u4f7f\u7528&#xff0c;\u518d\u89c1&#xff01;\\\\n&#034;<\/span><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 keyword\">default<\/span><span class=\"token operator\">:<\/span> <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u00d7 \u65e0\u6548\u8f93\u5165&#xff0c;\u8bf7\u8f93\u5165 1-7&#xff01;\\\\n&#034;<\/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><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<hr \/>\n<h3>5 \u8fd0\u884c\u9a8c\u6536<\/h3>\n<p>\u7f16\u8bd1&#xff0c;\u547d\u4ee4\u591a\u4e86\u4e00\u4e2a fileio\/fileio.c&#xff1a;<\/p>\n<p>gcc main.c model\/student.c view\/view.c controller\/controller.c util\/input.c fileio\/fileio.c -o student_mgr.exe<br \/>\n.\/student_mgr.exe<\/p>\n<p>\u5f00\u59cb\u8fd0\u884c\u9a8c\u6536&#xff0c;\u8ddf\u6211\u8d70\u4e00\u904d\u6d41\u7a0b&#xff1a;<\/p>\n<p>1.\u542f\u52a8&#xff0c;\u6dfb\u52a0 3 \u540d\u5b66\u751f&#xff0c;\u67e5\u770b\u4e00\u4e0b\u90fd\u5728&#xff0c;\u9000\u51fa&#xff0c;\u7a0b\u5e8f\u8bf4\u6570\u636e\u5df2\u4fdd\u5b58\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/10\/20261020071731-6ad7158b1ccc0.jpg\" alt=\"5-1 \u6dfb\u52a03\u540d\u5b66\u751f\u540e\u9000\u51fa\u4fdd\u5b58\" \/><\/p>\n<p>2.\u518d\u542f\u52a8&#xff0c;\u7a0b\u5e8f\u8bf4&#034;\u5df2\u52a0\u8f7d\u4e0a\u6b21\u4fdd\u5b58\u7684 3 \u540d\u5b66\u751f&#034;&#xff0c;\u67e5\u770b\u4e00\u4e0b&#xff0c;\u679c\u7136\u8fd8\u5728\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/10\/20261020071732-6ad7158c61a05.jpg\" alt=\"5-2 \u9a8c\u8bc1\u5df2\u4fdd\u5b58\" \/><\/p>\n<p>\u606d\u559c\u4f60&#xff01;\u73b0\u5728\u4f60\u7684\u7cfb\u7edf\u4e0d\u4f1a\u4e22\u6570\u636e\u4e86\u3002<\/p>\n<p>\u53bb\u7a0b\u5e8f\u76ee\u5f55\u4e0b\u627e students.dat&#xff0c;\u7528\u6587\u672c\u7f16\u8f91\u5668\u6253\u5f00&#xff0c;\u5b83\u957f\u8fd9\u6837&#xff1a;<\/p>\n<p>3<br \/>\n1001 \u5f20\u4e09 85.0 92.0 78.0<br \/>\n1002 \u674e\u56db 76.0 88.0 91.0<br \/>\n1003 \u738b\u4e94 90.0 82.5 77.5<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/10\/20261020071733-6ad7158d87e71.jpg\" alt=\"5-3 \u67e5\u770bdat\u6587\u672c\u6587\u4ef6\" \/><\/p>\n<p>\u4e00\u76ee\u4e86\u7136&#xff0c;\u5c31\u662f\u6211\u4eec\u4e4b\u524d\u8bbe\u7f6e\u7684\u683c\u5f0f&#xff1a;\u7b2c\u4e00\u884c\u603b\u6570&#xff0c;\u4e4b\u540e\u4e00\u884c\u4e00\u4e2a\u5b66\u751f&#xff0c;\u7a7a\u683c\u5206\u5f00\u3002<\/p>\n<p>\u6309ctrl&#043;c\u9000\u51fa\u7a0b\u5e8f&#xff08;\u5982\u679c\u4f60\u8fd8\u5f00\u7740\u7684\u8bdd&#xff09;&#xff0c;\u5c06students.dat\u624b\u52a8\u4fee\u6539\u6210\u8fd9\u6837&#xff1a;<\/p>\n<p>4<br \/>\n1001 \u5f20\u4e09 85.0 92.0 78.0<br \/>\n1002 \u674e\u56db 76.0 88.0 91.0<br \/>\n1003 \u738b\u4e94 90.0 82.5 77.5<br \/>\n1004 \u8d75\u516d 12.0 14.0 2.0<\/p>\n<p>\u6253\u5f00&#xff0c;\u67e5\u770b&#xff1a;<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/10\/20261020071734-6ad7158ec6ef9.jpg\" alt=\"5-4 \u4fee\u6539dat\u6587\u672c\u6587\u4ef6\u540e\u6253\u5f00\" \/><\/p>\n<hr \/>\n<h3>7 \u5b8c\u5584\u4ee3\u7801&#xff0c;\u9632\u6b62\u6570\u7ec4\u6ea2\u51fa<\/h3>\n<p>\u73b0\u5728\u6211\u4eec\u5bb9\u91cf\u5199\u6b7b 10\u3002\u52a0\u8f7d\u65f6\u5982\u679c\u6587\u4ef6\u91cc\u5b66\u751f\u8d85\u8fc7 10 \u4eba&#xff0c;\u4f60\u89c9\u5f97\u7a0b\u5e8f\u4f1a\u600e\u4e48\u6837&#xff1f;<\/p>\n<p>\u73b0\u5728\u6211\u4eec\u4ee3\u7801\u662f\u8fd9\u4e48\u8bfb\u7684&#xff1a;<\/p>\n<p><span class=\"token function\">fscanf<\/span><span class=\"token punctuation\">(<\/span>fp<span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;%d&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>sys<span class=\"token operator\">-&gt;<\/span>count<span class=\"token punctuation\">)<\/span><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> sys<span class=\"token operator\">-&gt;<\/span>count<span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/* &#8230; \u8bfb\u8fdb sys-&gt;students[i] &#8230; *\/<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u5982\u679c\u6587\u4ef6\u91cc count \u662f 15&#xff0c;sys-&gt;students \u53ea\u6709 10 \u4e2a\u4f4d\u7f6e\u2014\u2014\u5faa\u73af\u4f1a\u8bfb\u5230\u7b2c 11 \u4e2a&#xff0c;\u5199\u5230\u6570\u7ec4\u5916\u9762\u53bb\u2014\u2014\u8fd9\u5c31\u662f\u6570\u7ec4\u8d8a\u754c&#xff0c;\u7ed3\u679c undefined&#xff08;\u7a0b\u5e8f\u53ef\u80fd\u5d29\u3001\u53ef\u80fd\u4e71\u7801\u3001\u53ef\u80fd\u4ec0\u4e48\u4e8b\u90fd\u6ca1\u6709\u4f46\u6570\u636e\u9519\u4e86&#xff09;\u3002<\/p>\n<p>\u73b0\u5728\u5148\u52a0\u4e2a\u7b80\u5355\u9632\u62a4&#xff1a;<\/p>\n<p><span class=\"token keyword\">int<\/span> <span class=\"token function\">load_system<\/span><span class=\"token punctuation\">(<\/span>StudentSystem <span class=\"token operator\">*<\/span>sys<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><br \/>\n<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>filename<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><span class=\"token operator\">!<\/span>fp<span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">return<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">int<\/span> count<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token function\">fscanf<\/span><span class=\"token punctuation\">(<\/span>fp<span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;%d&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>count<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>count <span class=\"token operator\">&gt;<\/span> MAX_CAPACITY<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;\u8b66\u544a&#xff1a;\u6587\u4ef6\u4e2d\u6709 %d \u4e2a\u5b66\u751f&#xff0c;\u5f53\u524d\u7248\u672c\u6700\u591a\u88c5 %d \u4e2a&#xff0c;\u53ea\u88c5\u524d %d \u4e2a\u3002\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> count<span class=\"token punctuation\">,<\/span> MAX_CAPACITY<span class=\"token punctuation\">,<\/span> MAX_CAPACITY<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        count <span class=\"token operator\">&#061;<\/span> MAX_CAPACITY<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n    sys<span class=\"token operator\">-&gt;<\/span>count <span class=\"token operator\">&#061;<\/span> count<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <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> sys<span class=\"token operator\">-&gt;<\/span>count<span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/* &#8230; \u8bfb &#8230; *\/<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/* &#8230; *\/<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u52a0\u5165\u540e\u8fd0\u884c\u60c5\u51b5&#xff1a;<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/10\/20261020071735-6ad7158ff1d65.jpg\" alt=\"5-5 \u89e3\u51b3\u6539\u6587\u4ef6\u800c\u5bfc\u81f4\u7684\u6570\u7ec4\u6ea2\u51fa\u95ee\u9898\" \/><\/p>\n<p>\u8fd9\u6837\u81f3\u5c11\u4e0d\u5d29&#xff0c;\u7528\u6237\u4e5f\u77e5\u9053\u600e\u4e48\u56de\u4e8b\u3002\u4e0b\u4e00\u8282\u6211\u4eec\u89e3\u51b3\u5b57\u7b26\u4e32\u7684\u95ee\u9898&#xff1b;\u4e0b\u4e0b\u8282&#xff0c;\u6211\u4eec\u518d\u5b66\u4f1a\u600e\u4e48\u8ba9\u6570\u7ec4\u81ea\u5df1\u957f\u5927&#xff0c;\u5230\u65f6\u5019\u6211\u4eec\u5c06\u5f7b\u5e95\u89e3\u51b3\u6570\u7ec4\u6ea2\u51fa\u7684\u95ee\u9898\u3002<\/p>\n<hr \/>\n<h3>8 \u603b\u7ed3<\/h3>\n<li>\u6587\u4ef6 &#061; \u78c1\u76d8\u4e0a\u7684\u4e00\u4e32\u4e8c\u8fdb\u5236\u6570&#xff0c;\u7a0b\u5e8f\u5173\u95ed\u540e&#xff0c;\u5185\u5b58\u6e05\u7a7a&#xff0c;\u78c1\u76d8\u4e0d\u6e05\u3002\u6240\u4ee5\u6211\u4eec\u5b58\u6210\u6587\u4ef6\u7684\u5f62\u5f0f&#xff0c;\u6570\u636e\u5c31\u4e0d\u4f1a\u4e22\u6389\u3002<\/li>\n<li>\u56db\u4e2a\u51fd\u6570&#xff1a;fopen \u6253\u5f00 \u2192 fprintf\/fscanf \u8bfb\u5199 \u2192 fclose \u5173\u95ed\u3002\u683c\u5f0f\u8981\u8bfb\u5199\u4e00\u81f4&#xff0c;\u8fd9\u6837\u5c31\u4e0d\u4f1a\u51fa\u9519\u3002<\/li>\n<li>\u67b6\u6784\u81ea\u7136\u7684\u62d3\u5c55&#xff1a;\u65b0\u52a0\u4e00\u4e2a  fileio\/ \u529f\u80fd&#xff0c;model\/view\/controller \u4e00\u4e2a\u90fd\u4e0d\u7528\u6539&#xff0c;\u8fd9\u5c31\u662f\u5206\u5c42\u7684\u597d\u5904\u3002<\/li>\n","protected":false},"excerpt":{"rendered":"<p>4-5 \u6587\u4ef6\u8bfb\u5199&#xff1a;\u80fd\u4fdd\u5b58\u6570\u636e\u23f1 \u672c\u8282\u9884\u8ba1\u7528\u65f6&#xff1a;40\u5206\u949f\u672c\u8282\u610f\u4e49&#xff1a;\u8ba9\u4f60\u7684\u8f6f\u4ef6\u80fd\u4fdd\u5b58\u6570\u636e&#xff01;\u6240\u6709\u8f6f\u4ef6\u5fc5\u7528&#xff01;<br \/>\n\u672c\u8282\u76ee\u6807&#xff1a;\u7406\u89e3\u4e3a\u4ec0\u4e48\u8981\u6587\u4ef6\u8bfb\u5199&#xff1b;\u5b66\u4f1a fopen \/ fprintf \/ fscanf \/ fclose \u56db\u4e2a\u51fd\u6570&#xff0c;\u7ed9\u5b66\u751f\u7ba1\u7406\u7cfb\u7edf\u52a0\u4e0a\u4fdd\u5b58\/\u52a0\u8f7d\u529f\u80fd\u30021 \u600e\u4e48\u8ba9\u7a0b\u5e8f\u5173\u4e86\u6570\u636e\u8fd8\u5728<br \/>\n\u7b80\u5355\u8bf4&#xff1a;\u4f60\u73b0\u5728\u6240\u6709\u5b66\u751f\u90fd\u5b58\u5728\u5185\u5b58\u91cc\u3002\u7a0b\u5e8f\u9000\u51fa&#xff0c;\u64cd\u4f5c\u7cfb\u7edf\u5c31\u628a\u8fd9<\/p>\n","protected":false},"author":2,"featured_media":115962,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[53,174,190,1813,124],"topic":[],"class_list":["post-115967","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-ai","tag-c","tag-190","tag-1813","tag-124"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>4-5 \u6587\u4ef6\u8bfb\u5199\uff1a\u80fd\u4fdd\u5b58\u6570\u636e - \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\/115967.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"4-5 \u6587\u4ef6\u8bfb\u5199\uff1a\u80fd\u4fdd\u5b58\u6570\u636e - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"og:description\" content=\"4-5 \u6587\u4ef6\u8bfb\u5199&#xff1a;\u80fd\u4fdd\u5b58\u6570\u636e\u23f1 \u672c\u8282\u9884\u8ba1\u7528\u65f6&#xff1a;40\u5206\u949f\u672c\u8282\u610f\u4e49&#xff1a;\u8ba9\u4f60\u7684\u8f6f\u4ef6\u80fd\u4fdd\u5b58\u6570\u636e&#xff01;\u6240\u6709\u8f6f\u4ef6\u5fc5\u7528&#xff01; \u672c\u8282\u76ee\u6807&#xff1a;\u7406\u89e3\u4e3a\u4ec0\u4e48\u8981\u6587\u4ef6\u8bfb\u5199&#xff1b;\u5b66\u4f1a fopen \/ fprintf \/ fscanf \/ fclose \u56db\u4e2a\u51fd\u6570&#xff0c;\u7ed9\u5b66\u751f\u7ba1\u7406\u7cfb\u7edf\u52a0\u4e0a\u4fdd\u5b58\/\u52a0\u8f7d\u529f\u80fd\u30021 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