{"id":100,"date":"2026-09-21T19:18:56","date_gmt":"2026-09-21T11:18:56","guid":{"rendered":"https:\/\/decagrammaton.xyz\/?p=100"},"modified":"2026-09-18T19:21:47","modified_gmt":"2026-09-18T11:21:47","slug":"013-c%e8%af%ad%e8%a8%80%e5%a4%9a%e6%96%87%e4%bb%b6%e7%bc%96%e7%a8%8b","status":"publish","type":"post","link":"https:\/\/decagrammaton.xyz\/?p=100","title":{"rendered":"013-C\u8bed\u8a00\u591a\u6587\u4ef6\u7f16\u7a0b"},"content":{"rendered":"\n
\n\n\n\n
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\u524d\u9762\u5df2\u7ecf\u5b66\u4e60\u4e86\uff1a<\/p>\n\n\n\n

\u7ed3\u6784\u4f53\n\u52a8\u6001\u5185\u5b58\n\u6587\u4ef6\u64cd\u4f5c\n\u9884\u5904\u7406\u4e0e\u5934\u6587\u4ef6<\/code><\/pre>\n\n\n\n
\u5f53\u7a0b\u5e8f\u8d8a\u6765\u8d8a\u5927\u65f6\uff0c\u5982\u679c\u6240\u6709\u4ee3\u7801\u90fd\u5199\u5728\uff1a<\/p>\n\n\n\n
main.c<\/code><\/pre>\n\n\n\n
\u91cc\u9762\uff0c\u4f1a\u8d8a\u6765\u8d8a\u96be\u7ef4\u62a4\u3002<\/p>\n\n\n\n
\u4f8b\u5982\u4e00\u4e2a\u5b66\u751f\u7ba1\u7406\u7cfb\u7edf\u53ef\u80fd\u6709\uff1a<\/p>\n\n\n\n
\u5b66\u751f\u76f8\u5173\u4ee3\u7801\n\u6587\u4ef6\u76f8\u5173\u4ee3\u7801\n\u83dc\u5355\u76f8\u5173\u4ee3\u7801\n\u5de5\u5177\u51fd\u6570\n\u4e3b\u7a0b\u5e8f<\/code><\/pre>\n\n\n\n
\u5982\u679c\u5168\u90e8\u585e\u8fdb\u4e00\u4e2a\u6587\u4ef6\uff1a<\/p>\n\n\n\n
main.c<\/code><\/pre>\n\n\n\n
\u53ef\u80fd\u4f1a\u53d8\u6210\u51e0\u5343\u884c\u3002<\/p>\n\n\n\n
\u6240\u4ee5\u6211\u4eec\u53ef\u4ee5\u628a\u7a0b\u5e8f\u62c6\u6210\u591a\u4e2a\u6587\u4ef6\uff1a<\/p>\n\n\n\n
main.c\nstudent.c\nstudent.h\nfile.c\nfile.h<\/code><\/pre>\n\n\n\n
\u8fd9\u5c31\u662f\uff1a<\/p>\n\n\n\n
\u591a\u6587\u4ef6\u7f16\u7a0b\u3002<\/strong><\/p>\n\n\n\n
\n\n\n\n
\u4e00\u3001\u4e3a\u4ec0\u4e48\u8981\u4f7f\u7528\u591a\u4e2a\u6587\u4ef6<\/h1>\n\n\n\n
\u5047\u8bbe\u6211\u4eec\u6709\uff1a<\/p>\n\n\n\n
<\/a>void<\/span> hello()<\/span> {<\/span><\/span>\n<\/a>    printf(<\/span>\"Hello<\/span>\\n<\/span>\"<\/span>);<\/span><\/span>\n<\/a>}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u5982\u679c\u53ea\u6709\u4e00\u4e2a\u51fd\u6570\u5f53\u7136\u6ca1\u95ee\u9898\u3002<\/p>\n\n\n\n
\u4f46\u662f\u5982\u679c\u7a0b\u5e8f\u53d8\u6210\uff1a<\/p>\n\n\n\n
main()\nstudent()\nfile()\nmenu()\nconfig()\nutils()<\/code><\/pre>\n\n\n\n
\u5168\u90e8\u653e\u5728\u4e00\u4e2a\u6587\u4ef6\u91cc\uff1a<\/p>\n\n\n\n
main.c<\/code><\/pre>\n\n\n\n
\u4ee3\u7801\u4f1a\u8d8a\u6765\u8d8a\u96be\u627e\u3002<\/p>\n\n\n\n
\u53ef\u4ee5\u62c6\u6210\uff1a<\/p>\n\n\n\n
main.c\nstudent.c\nfile.c<\/code><\/pre>\n\n\n\n
\u6bcf\u4e2a\u6587\u4ef6\u8d1f\u8d23\u4e00\u90e8\u5206\u529f\u80fd\u3002<\/p>\n\n\n\n
\u4f8b\u5982\uff1a<\/p>\n\n\n\n
main.c\n\u2193\n\u7a0b\u5e8f\u5165\u53e3\u3001\u83dc\u5355\n\nstudent.c\n\u2193\n\u5b66\u751f\u76f8\u5173\u64cd\u4f5c\n\nfile.c\n\u2193\n\u6587\u4ef6\u8bfb\u5199<\/code><\/pre>\n\n\n\n
\u8fd9\u5c31\u662f\u6a21\u5757\u5316\u3002<\/p>\n\n\n\n
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\u4e8c\u3001.c \u548c .h \u5206\u522b\u662f\u4ec0\u4e48<\/h1>\n\n\n\n
\u591a\u6587\u4ef6\u7f16\u7a0b\u6700\u91cd\u8981\u7684\u4e24\u4e2a\u6587\u4ef6\uff1a<\/p>\n\n\n\n
.c\n.h<\/code><\/pre>\n\n\n\n
.c<\/code><\/h2>\n\n\n\n
\u901a\u5e38\u7528\u4e8e\uff1a<\/p>\n\n\n\n
\u51fd\u6570\u5b9e\u73b0\u3002<\/strong><\/p>\n\n\n\n
\u4f8b\u5982\uff1a<\/p>\n\n\n\n
<\/a>void<\/span> hello()<\/span> {<\/span><\/span>\n<\/a>    printf(<\/span>\"Hello<\/span>\\n<\/span>\"<\/span>);<\/span><\/span>\n<\/a>}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\n\n\n\n
.h<\/code><\/h2>\n\n\n\n
\u901a\u5e38\u7528\u4e8e\uff1a<\/p>\n\n\n\n
\u58f0\u660e\u548c\u516c\u5171\u5b9a\u4e49\u3002<\/strong><\/p>\n\n\n\n
\u4f8b\u5982\uff1a<\/p>\n\n\n\n
<\/a>void<\/span> hello();<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\n\n\n\n
\u53ef\u4ee5\u7b80\u5355\u8bb0\uff1a<\/p>\n\n\n\n
.h\n\u2193\n\u544a\u8bc9\u522b\u4eba\u201c\u6709\u4ec0\u4e48\u201d\n\n.c\n\u2193\n\u771f\u6b63\u5b9e\u73b0\u201c\u600e\u4e48\u505a\u201d<\/code><\/pre>\n\n\n\n
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\u4e09\u3001\u58f0\u660e\u4e0e\u5b9a\u4e49<\/h1>\n\n\n\n
\u8fd9\u4e2a\u6982\u5ff5\u5728\u591a\u6587\u4ef6\u7f16\u7a0b\u4e2d\u975e\u5e38\u91cd\u8981\u3002<\/p>\n\n\n\n
\u4f8b\u5982\uff1a<\/p>\n\n\n\n
<\/a>int<\/span> add(<\/span>int<\/span> a,<\/span> int<\/span> b);<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u8fd9\u662f\uff1a<\/p>\n\n\n\n
\u58f0\u660e\u3002<\/strong><\/p>\n\n\n\n
\u610f\u601d\u662f\uff1a<\/p>\n\n\n\n
\u6709\u4e00\u4e2a add \u51fd\u6570\n\u5b83\u63a5\u6536\u4e24\u4e2a int\n\u8fd4\u56de\u4e00\u4e2a int<\/code><\/pre>\n\n\n\n
\u800c\uff1a<\/p>\n\n\n\n
<\/a>int<\/span> add(<\/span>int<\/span> a,<\/span> int<\/span> b)<\/span> {<\/span><\/span>\n<\/a>    return<\/span> a +<\/span> b;<\/span><\/span>\n<\/a>}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u8fd9\u662f\uff1a<\/p>\n\n\n\n
\u5b9a\u4e49\u3002<\/strong><\/p>\n\n\n\n
\u771f\u6b63\u5b9e\u73b0\u8fd9\u4e2a\u51fd\u6570\u3002<\/p>\n\n\n\n
\u6240\u4ee5\uff1a<\/p>\n\n\n\n
\u58f0\u660e\n\u2193\n\u544a\u8bc9\u7f16\u8bd1\u5668\u5b58\u5728\u8fd9\u4e2a\u4e1c\u897f\n\n\u5b9a\u4e49\n\u2193\n\u771f\u6b63\u5b9e\u73b0\u8fd9\u4e2a\u4e1c\u897f<\/code><\/pre>\n\n\n\n
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\u56db\u3001\u6700\u7b80\u5355\u7684\u591a\u6587\u4ef6\u7a0b\u5e8f<\/h1>\n\n\n\n
\u5148\u5efa\u7acb\uff1a<\/p>\n\n\n\n
project\/\n\u251c\u2500 main.c\n\u251c\u2500 hello.c\n\u2514\u2500 hello.h<\/code><\/pre>\n\n\n\n
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hello.h<\/h2>\n\n\n\n
<\/a>#ifndef HELLO_H<\/span><\/span>\n<\/a>#define HELLO_H<\/span><\/span>\n<\/a><\/span>\n<\/a>void<\/span> hello();<\/span><\/span>\n<\/a><\/span>\n<\/a>#endif<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u8fd9\u91cc\u662f\uff1a<\/p>\n\n\n\n
\u51fd\u6570\u58f0\u660e<\/code><\/pre>\n\n\n\n
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hello.c<\/h2>\n\n\n\n
<\/a>#include <\/span><stdio.h><\/span><\/span>\n<\/a>#include <\/span>\"hello.h\"<\/span><\/span>\n<\/a><\/span>\n<\/a>void<\/span> hello()<\/span> {<\/span><\/span>\n<\/a>    printf(<\/span>\"Hello World!<\/span>\\n<\/span>\"<\/span>);<\/span><\/span>\n<\/a>}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u8fd9\u91cc\u662f\uff1a<\/p>\n\n\n\n
\u51fd\u6570\u5b9a\u4e49<\/code><\/pre>\n\n\n\n
\n\n\n\n
main.c<\/h2>\n\n\n\n
<\/a>#include <\/span>\"hello.h\"<\/span><\/span>\n<\/a><\/span>\n<\/a>int<\/span> main()<\/span> {<\/span><\/span>\n<\/a>    hello();<\/span><\/span>\n<\/a><\/span>\n<\/a>    return<\/span> 0<\/span>;<\/span><\/span>\n<\/a>}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u8fd9\u91cc\u8c03\u7528\uff1a<\/p>\n\n\n\n
<\/a>hello();<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
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\u4e94\u3001\u7f16\u8bd1\u591a\u4e2a .c \u6587\u4ef6<\/h1>\n\n\n\n
\u4f7f\u7528 GCC\uff1a<\/p>\n\n\n\n
<\/a>gcc<\/span> main.c hello.c -o<\/span> main<\/span><\/code><\/pre><\/div>\n\n\n\n
\u8fd9\u91cc\uff1a<\/p>\n\n\n\n
main.c\n+\nhello.c\n\u2193\n\u7f16\u8bd1\n\u2193\n\u94fe\u63a5\n\u2193\nmain<\/code><\/pre>\n\n\n\n
\u8fd0\u884c\uff1a<\/p>\n\n\n\n
<\/a>.\/main<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
Windows \u4e0b\uff1a<\/p>\n\n\n\n
<\/a>main.exe<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u8f93\u51fa\uff1a<\/p>\n\n\n\n
Hello World!<\/code><\/pre>\n\n\n\n
\n\n\n\n
\u516d\u3001\u4e3a\u4ec0\u4e48 main.c \u80fd\u8c03\u7528\nhello()<\/h1>\n\n\n\n
\u56e0\u4e3a\uff1a<\/p>\n\n\n\n
<\/a>#include <\/span>\"hello.h\"<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u9884\u5904\u7406\u540e\uff0cmain.c<\/code> \u53ef\u4ee5\u770b\u5230\uff1a<\/p>\n\n\n\n
<\/a>void<\/span> hello();<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u4e8e\u662f\u7f16\u8bd1\u5668\u77e5\u9053\uff1a<\/p>\n\n\n\n
hello()\n\u5b58\u5728<\/code><\/pre>\n\n\n\n
\u4f46\u662f\uff1a<\/p>\n\n\n\n
hello()<\/code><\/pre>\n\n\n\n
\u771f\u6b63\u7684\u5b9e\u73b0\u5728\u54ea\u91cc\uff1f<\/p>\n\n\n\n
\u5728\uff1a<\/p>\n\n\n\n
hello.c<\/code><\/pre>\n\n\n\n
\u6240\u4ee5\u6700\u540e\u9700\u8981\uff1a<\/p>\n\n\n\n
\u94fe\u63a5\u3002<\/strong><\/p>\n\n\n\n
\n\n\n\n
\u4e03\u3001\u7f16\u8bd1\u548c\u94fe\u63a5<\/h1>\n\n\n\n
\u591a\u4e2a .c<\/code> \u6587\u4ef6\u5e76\u4e0d\u662f\u76f4\u63a5\u53d8\u6210\u4e00\u4e2a\u7a0b\u5e8f\u3002<\/p>\n\n\n\n
\u53ef\u4ee5\u7c97\u7565\u7406\u89e3\u4e3a\uff1a<\/p>\n\n\n\n
main.c\n \u2193\n\u9884\u5904\u7406\n \u2193\n\u7f16\u8bd1\n \u2193\nmain.o\n\nhello.c\n \u2193\n\u9884\u5904\u7406\n \u2193\n\u7f16\u8bd1\n \u2193\nhello.o\n\nmain.o + hello.o\n \u2193\n\u94fe\u63a5\n \u2193\nmain<\/code><\/pre>\n\n\n\n
\u6240\u4ee5\uff1a<\/p>\n\n\n\n
\u7f16\u8bd1\n\u2193\n\u6bcf\u4e2a .c \u53d8\u6210\u76ee\u6807\u6587\u4ef6\n\n\u94fe\u63a5\n\u2193\n\u628a\u591a\u4e2a\u76ee\u6807\u6587\u4ef6\u7ec4\u5408\u8d77\u6765<\/code><\/pre>\n\n\n\n
\n\n\n\n
\u516b\u3001\u4e3a\u4ec0\u4e48\u53ea\u7f16\u8bd1 main.c\n\u4f1a\u62a5\u9519<\/h1>\n\n\n\n
\u5982\u679c\u6267\u884c\uff1a<\/p>\n\n\n\n
<\/a>gcc<\/span> main.c -o<\/span> main<\/span><\/code><\/pre><\/div>\n\n\n\n
main.c<\/code> \u867d\u7136\u901a\u8fc7\uff1a<\/p>\n\n\n\n
<\/a>#include <\/span>\"hello.h\"<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u77e5\u9053\uff1a<\/p>\n\n\n\n
<\/a>void<\/span> hello();<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u4f46\u662f hello()<\/code> \u7684\u5b9e\u73b0\u4e0d\u5728 main.c<\/code>\u3002<\/p>\n\n\n\n
\u6240\u4ee5\u94fe\u63a5\u9636\u6bb5\u4f1a\u627e\u4e0d\u5230\uff1a<\/p>\n\n\n\n
hello<\/code><\/pre>\n\n\n\n
\u4e8e\u662f\u51fa\u73b0\uff1a<\/p>\n\n\n\n
undefined reference to `hello`<\/code><\/pre>\n\n\n\n
Windows + MinGW \u4e0b\u53ef\u80fd\u4f1a\u770b\u5230\u7c7b\u4f3c\uff1a<\/p>\n\n\n\n
undefined reference to `hello`<\/code><\/pre>\n\n\n\n
\u610f\u601d\u5c31\u662f\uff1a<\/p>\n\n\n\n
\u58f0\u660e\u627e\u5230\u4e86\uff0c\u4f46\u5b9e\u73b0\u6ca1\u6709\u94fe\u63a5\u8fdb\u6765\u3002<\/strong><\/p>\n\n\n\n
\n\n\n\n
\u4e5d\u3001\u5934\u6587\u4ef6\u4e0d\u662f\u5b9e\u73b0<\/h1>\n\n\n\n
\u4f8b\u5982\uff1a<\/p>\n\n\n\n
hello.h<\/code><\/pre>\n\n\n\n
\u91cc\u9762\uff1a<\/p>\n\n\n\n
<\/a>void<\/span> hello();<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u53ea\u662f\u544a\u8bc9\u7f16\u8bd1\u5668\uff1a<\/p>\n\n\n\n
\u6709\u4e00\u4e2a hello()<\/code><\/pre>\n\n\n\n
\u771f\u6b63\u5b9e\u73b0\uff1a<\/p>\n\n\n\n
<\/a>void<\/span> hello()<\/span> {<\/span><\/span>\n<\/a>    printf(<\/span>\"Hello\"<\/span>);<\/span><\/span>\n<\/a>}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u5e94\u8be5\u5728\uff1a<\/p>\n\n\n\n
hello.c<\/code><\/pre>\n\n\n\n
\u6240\u4ee5\uff1a<\/p>\n\n\n\n
hello.h\n\u2193\n\u58f0\u660e\n\nhello.c\n\u2193\n\u5b9a\u4e49<\/code><\/pre>\n\n\n\n
\n\n\n\n
\u5341\u3001\u7ed3\u6784\u4f53\u4e5f\u53ef\u4ee5\u653e\u8fdb\u5934\u6587\u4ef6<\/h1>\n\n\n\n
\u4f8b\u5982\uff1a<\/p>\n\n\n\n
student.h<\/code><\/pre>\n\n\n\n
\u53ef\u4ee5\u5199\uff1a<\/p>\n\n\n\n
<\/a>#ifndef STUDENT_H<\/span><\/span>\n<\/a>#define STUDENT_H<\/span><\/span>\n<\/a><\/span>\n<\/a>typedef<\/span> struct<\/span> {<\/span><\/span>\n<\/a>    char<\/span> name[<\/span>50<\/span>];<\/span><\/span>\n<\/a>    int<\/span> age;<\/span><\/span>\n<\/a>    double<\/span> score;<\/span><\/span>\n<\/a>}<\/span> Student;<\/span><\/span>\n<\/a><\/span>\n<\/a>void<\/span> print_student(<\/span>Student *<\/span>p);<\/span><\/span>\n<\/a>void<\/span> add_score(<\/span>Student *<\/span>p,<\/span> double<\/span> score);<\/span><\/span>\n<\/a><\/span>\n<\/a>#endif<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u7136\u540e\uff1a<\/p>\n\n\n\n
student.c<\/code><\/pre>\n\n\n\n
\u8d1f\u8d23\u5b9e\u73b0\uff1a<\/p>\n\n\n\n
<\/a>#include <\/span><stdio.h><\/span><\/span>\n<\/a>#include <\/span>\"student.h\"<\/span><\/span>\n<\/a><\/span>\n<\/a>void<\/span> print_student(<\/span>Student *<\/span>p)<\/span> {<\/span><\/span>\n<\/a>    printf(<\/span>\"<\/span>%s<\/span> <\/span>%d<\/span> <\/span>%.2f\\n<\/span>\"<\/span>,<\/span><\/span>\n<\/a>           p-><\/span>name,<\/span><\/span>\n<\/a>           p-><\/span>age,<\/span><\/span>\n<\/a>           p-><\/span>score);<\/span><\/span>\n<\/a>}<\/span><\/span>\n<\/a><\/span>\n<\/a>void<\/span> add_score(<\/span>Student *<\/span>p,<\/span> double<\/span> score)<\/span> {<\/span><\/span>\n<\/a>    p-><\/span>score +=<\/span> score;<\/span><\/span>\n<\/a>}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u7136\u540e\uff1a<\/p>\n\n\n\n
main.c<\/code><\/pre>\n\n\n\n
\u53ea\u8d1f\u8d23\u8c03\u7528\uff1a<\/p>\n\n\n\n
<\/a>#include <\/span>\"student.h\"<\/span><\/span>\n<\/a><\/span>\n<\/a>int<\/span> main()<\/span> {<\/span><\/span>\n<\/a><\/span>\n<\/a>    Student s =<\/span> {<\/span><\/span>\n<\/a>        \"Alice\"<\/span>,<\/span><\/span>\n<\/a>        18<\/span>,<\/span><\/span>\n<\/a>        95.5<\/span><\/span>\n<\/a>    };<\/span><\/span>\n<\/a><\/span>\n<\/a>    print_student(&<\/span>s);<\/span><\/span>\n<\/a>    add_score(&<\/span>s,<\/span> 2.0<\/span>);<\/span><\/span>\n<\/a>    print_student(&<\/span>s);<\/span><\/span>\n<\/a><\/span>\n<\/a>    return<\/span> 0<\/span>;<\/span><\/span>\n<\/a>}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\n\n\n\n
\u5341\u4e00\u3001\u6a21\u5757\u5316<\/h1>\n\n\n\n
\u73b0\u5728\u53ef\u4ee5\u770b\u5230\uff1a<\/p>\n\n\n\n
student.h\n\u2193\nStudent \u7c7b\u578b\n\u51fd\u6570\u58f0\u660e\n\nstudent.c\n\u2193\n\u5b66\u751f\u529f\u80fd\u5b9e\u73b0\n\nmain.c\n\u2193\n\u7a0b\u5e8f\u5165\u53e3<\/code><\/pre>\n\n\n\n
\u8fd9\u79cd\u65b9\u5f0f\u53eb\uff1a<\/p>\n\n\n\n
\u6a21\u5757\u5316\u3002<\/strong><\/p>\n\n\n\n
\u4ee5\u540e\u8fd8\u53ef\u4ee5\uff1a<\/p>\n\n\n\n
file.h\nfile.c\n\nmenu.h\nmenu.c\n\nutils.h\nutils.c<\/code><\/pre>\n\n\n\n
\u6bcf\u4e00\u4e2a\u6a21\u5757\u8d1f\u8d23\u81ea\u5df1\u7684\u4e8b\u60c5\u3002<\/p>\n\n\n\n
\n\n\n\n
\u5341\u4e8c\u3001extern<\/h1>\n\n\n\n
\u591a\u6587\u4ef6\u7f16\u7a0b\u4e2d\u8fd8\u6709\u4e00\u4e2a\u91cd\u8981\u5173\u952e\u5b57\uff1a<\/p>\n\n\n\n
<\/a>extern<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u5b83\u7528\u4e8e\u58f0\u660e\uff1a<\/p>\n\n\n\n
\u67d0\u4e2a\u53d8\u91cf\u5728\u5176\u4ed6\u5730\u65b9\u5b9a\u4e49\u3002<\/strong><\/p>\n\n\n\n
\u4f8b\u5982\uff1a<\/p>\n\n\n\n
<\/a>\/\/ config.h<\/span><\/span>\n<\/a><\/span>\n<\/a>extern<\/span> int<\/span> max_students;<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u8fd9\u91cc\u6ca1\u6709\u771f\u6b63\u521b\u5efa\uff1a<\/p>\n\n\n\n
max_students<\/code><\/pre>\n\n\n\n
\u53ea\u662f\u58f0\u660e\uff1a<\/p>\n\n\n\n
\u6709\u4e00\u4e2a\u53eb max_students \u7684 int<\/code><\/pre>\n\n\n\n
\n\n\n\n
\u5341\u4e09\u3001extern \u7684\u5b9e\u9645\u4f7f\u7528<\/h1>\n\n\n\n
\u76ee\u5f55\uff1a<\/p>\n\n\n\n
project\/\n\u251c\u2500 main.c\n\u251c\u2500 config.c\n\u2514\u2500 config.h<\/code><\/pre>\n\n\n\n
\n\n\n\n
config.h<\/h2>\n\n\n\n
<\/a>#ifndef CONFIG_H<\/span><\/span>\n<\/a>#define CONFIG_H<\/span><\/span>\n<\/a><\/span>\n<\/a>extern<\/span> int<\/span> max_students;<\/span><\/span>\n<\/a><\/span>\n<\/a>#endif<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\n\n\n\n
config.c<\/h2>\n\n\n\n
<\/a>#include <\/span>\"config.h\"<\/span><\/span>\n<\/a><\/span>\n<\/a>int<\/span> max_students =<\/span> 100<\/span>;<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u8fd9\u91cc\uff1a<\/p>\n\n\n\n
<\/a>int<\/span> max_students =<\/span> 100<\/span>;<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u624d\u662f\u771f\u6b63\u7684\uff1a<\/p>\n\n\n\n
\u5b9a\u4e49\u3002<\/strong><\/p>\n\n\n\n
\n\n\n\n
main.c<\/h2>\n\n\n\n
<\/a>#include <\/span><stdio.h><\/span><\/span>\n<\/a>#include <\/span>\"config.h\"<\/span><\/span>\n<\/a><\/span>\n<\/a>int<\/span> main()<\/span> {<\/span><\/span>\n<\/a><\/span>\n<\/a>    printf(<\/span>\"<\/span>%d\\n<\/span>\"<\/span>,<\/span> max_students);<\/span><\/span>\n<\/a><\/span>\n<\/a>    return<\/span> 0<\/span>;<\/span><\/span>\n<\/a>}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u7f16\u8bd1\uff1a<\/p>\n\n\n\n
<\/a>gcc<\/span> main.c config.c -o<\/span> main<\/span><\/code><\/pre><\/div>\n\n\n\n
\u8f93\u51fa\uff1a<\/p>\n\n\n\n
100<\/code><\/pre>\n\n\n\n
\n\n\n\n
\u5341\u56db\u3001\u4e3a\u4ec0\u4e48 extern \u6709\u7528<\/h1>\n\n\n\n
\u5047\u8bbe\uff1a<\/p>\n\n\n\n
main.c\nstudent.c\nfile.c<\/code><\/pre>\n\n\n\n
\u591a\u4e2a\u6a21\u5757\u90fd\u9700\u8981\uff1a<\/p>\n\n\n\n
max_students<\/code><\/pre>\n\n\n\n
\u53ef\u4ee5\u628a\uff1a<\/p>\n\n\n\n
<\/a>extern<\/span> int<\/span> max_students;<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u653e\u5230\uff1a<\/p>\n\n\n\n
config.h<\/code><\/pre>\n\n\n\n
\u7136\u540e\u5404\u4e2a .c<\/code>\uff1a<\/p>\n\n\n\n
<\/a>#include <\/span>\"config.h\"<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u5373\u53ef\u4f7f\u7528\u3002<\/p>\n\n\n\n
\u4f46\u771f\u6b63\u7684\u53d8\u91cf\u5b9a\u4e49\uff1a<\/p>\n\n\n\n
<\/a>int<\/span> max_students =<\/span> 100<\/span>;<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u4e00\u822c\u53ea\u653e\u5728\u4e00\u4e2a .c<\/code> \u6587\u4ef6\u91cc\u3002<\/p>\n\n\n\n
\n\n\n\n
\u5341\u4e94\u3001\u4e3a\u4ec0\u4e48\u4e0d\u80fd\u5b9a\u4e49\u5f88\u591a\u6b21<\/h1>\n\n\n\n
\u4f8b\u5982\uff1a<\/p>\n\n\n\n
<\/a>int<\/span> max_students =<\/span> 100<\/span>;<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u540c\u65f6\u51fa\u73b0\u5728\uff1a<\/p>\n\n\n\n
main.c\nstudent.c\nfile.c<\/code><\/pre>\n\n\n\n
\u90a3\u4e48\u94fe\u63a5\u65f6\u4f1a\u51fa\u73b0\uff1a<\/p>\n\n\n\n
\u91cd\u590d\u5b9a\u4e49\u3002<\/strong><\/p>\n\n\n\n
\u56e0\u4e3a\u7a0b\u5e8f\u91cc\u51fa\u73b0\u4e86\u591a\u4e2a\u540c\u540d\u5168\u5c40\u53d8\u91cf\u5b9a\u4e49\u3002<\/p>\n\n\n\n
\u6b63\u786e\uff1a<\/p>\n\n\n\n
config.h\n\u2193\nextern int max_students;\n\nconfig.c\n\u2193\nint max_students = 100;<\/code><\/pre>\n\n\n\n
\n\n\n\n
\u5341\u516d\u3001static<\/h1>\n\n\n\n
\u53e6\u4e00\u4e2a\u5f88\u91cd\u8981\u7684\u5173\u952e\u5b57\uff1a<\/p>\n\n\n\n
<\/a>static<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u5728\u591a\u6587\u4ef6\u7f16\u7a0b\u4e2d\uff0cstatic<\/code>\n\u53ef\u4ee5\u8ba9\u4e00\u4e2a\u5168\u5c40\u51fd\u6570\u6216\u5168\u5c40\u53d8\u91cf\uff1a<\/p>\n\n\n\n
\u53ea\u5728\u5f53\u524d .c<\/code> \u6587\u4ef6\u4e2d\u53ef\u89c1\u3002<\/strong><\/p>\n\n\n\n
\u4f8b\u5982\uff1a<\/p>\n\n\n\n
<\/a>static<\/span> void<\/span> helper()<\/span> {<\/span><\/span>\n<\/a>    printf(<\/span>\"helper<\/span>\\n<\/span>\"<\/span>);<\/span><\/span>\n<\/a>}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u90a3\u4e48\u5176\u4ed6 .c<\/code> \u6587\u4ef6\u4e0d\u80fd\u76f4\u63a5\u8c03\u7528\uff1a<\/p>\n\n\n\n
<\/a>helper();<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\n\n\n\n
\u5341\u4e03\u3001\u4e3a\u4ec0\u4e48\u9700\u8981 static<\/h1>\n\n\n\n
\u5047\u8bbe\uff1a<\/p>\n\n\n\n
student.c<\/code><\/pre>\n\n\n\n
\u91cc\u9762\u6709\u4e00\u4e2a\u5185\u90e8\u8f85\u52a9\u51fd\u6570\uff1a<\/p>\n\n\n\n
<\/a>static<\/span> void<\/span> check_score()<\/span> {<\/span><\/span>\n<\/a>    ...<\/span><\/span>\n<\/a>}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u8fd9\u4e2a\u51fd\u6570\u53ea\u662f\uff1a<\/p>\n\n\n\n
student.c \u81ea\u5df1\u5185\u90e8\u4f7f\u7528<\/code><\/pre>\n\n\n\n
\u4e0d\u5e0c\u671b\u5176\u4ed6\u6a21\u5757\u8bbf\u95ee\u3002<\/p>\n\n\n\n
\u90a3\u4e48\u53ef\u4ee5\uff1a<\/p>\n\n\n\n
<\/a>static<\/span> void<\/span> check_score()<\/span> {<\/span><\/span>\n<\/a>    ...<\/span><\/span>\n<\/a>}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u8fd9\u6837\u53ef\u4ee5\u51cf\u5c11\u6a21\u5757\u4e4b\u95f4\u7684\u4f9d\u8d56\u3002<\/p>\n\n\n\n
\n\n\n\n
\u5341\u516b\u3001static \u5168\u5c40\u53d8\u91cf<\/h1>\n\n\n\n
\u4f8b\u5982\uff1a<\/p>\n\n\n\n
<\/a>static<\/span> int<\/span> count =<\/span> 0<\/span>;<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u8868\u793a\u8fd9\u4e2a\u53d8\u91cf\u53ea\u5728\u5f53\u524d .c<\/code> \u6587\u4ef6\u4e2d\u53ef\u89c1\u3002<\/p>\n\n\n\n
\u5176\u4ed6\uff1a<\/p>\n\n\n\n
main.c<\/code><\/pre>\n\n\n\n
\u4e0d\u80fd\u76f4\u63a5\u8bbf\u95ee\u8fd9\u4e2a\uff1a<\/p>\n\n\n\n
count<\/code><\/pre>\n\n\n\n
\u8fd9\u4e5f\u662f\u6a21\u5757\u5316\u7684\u91cd\u8981\u624b\u6bb5\u3002<\/p>\n\n\n\n
\n\n\n\n
\u5341\u4e5d\u3001static \u548c\u666e\u901a\u5168\u5c40\u53d8\u91cf<\/h1>\n\n\n\n
\u666e\u901a\uff1a<\/p>\n\n\n\n
<\/a>int<\/span> count =<\/span> 0<\/span>;<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u53ef\u4ee5\u88ab\u5176\u4ed6 .c<\/code> \u6587\u4ef6\u901a\u8fc7\uff1a<\/p>\n\n\n\n
<\/a>extern<\/span> int<\/span> count;<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u5f15\u7528\u3002<\/p>\n\n\n\n
\u800c\uff1a<\/p>\n\n\n\n
<\/a>static<\/span> int<\/span> count =<\/span> 0<\/span>;<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u53ea\u80fd\u5728\u5f53\u524d\u6587\u4ef6\u4f7f\u7528\u3002<\/p>\n\n\n\n
\u53ef\u4ee5\u7b80\u5355\u8bb0\uff1a<\/p>\n\n\n\n
\u666e\u901a\u5168\u5c40\u53d8\u91cf\n\u2193\n\u53ef\u4ee5\u8de8\u6587\u4ef6\u4f7f\u7528\n\nstatic \u5168\u5c40\u53d8\u91cf\n\u2193\n\u53ea\u5c5e\u4e8e\u5f53\u524d .c \u6587\u4ef6<\/code><\/pre>\n\n\n\n
\n\n\n\n
\u4e8c\u5341\u3001static \u51fd\u6570<\/h1>\n\n\n\n
\u666e\u901a\u51fd\u6570\uff1a<\/p>\n\n\n\n
<\/a>void<\/span> helper()<\/span> {<\/span><\/span>\n<\/a>}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u7406\u8bba\u4e0a\u53ef\u4ee5\u88ab\u5176\u4ed6\u6587\u4ef6\u8c03\u7528\u3002<\/p>\n\n\n\n
\u800c\uff1a<\/p>\n\n\n\n
<\/a>static<\/span> void<\/span> helper()<\/span> {<\/span><\/span>\n<\/a>}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u53ea\u5141\u8bb8\u5f53\u524d .c<\/code> \u6587\u4ef6\u4f7f\u7528\u3002<\/p>\n\n\n\n
\u4f8b\u5982\uff1a<\/p>\n\n\n\n
student.c\n\nstatic void check_age() {\n    ...\n}\n\nvoid add_student() {\n    check_age();\n}<\/code><\/pre>\n\n\n\n
\u5176\u4ed6\u6587\u4ef6\uff1a<\/p>\n\n\n\n
main.c<\/code><\/pre>\n\n\n\n
\u4e0d\u80fd\uff1a<\/p>\n\n\n\n
<\/a>check_age();<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\n\n\n\n
\u4e8c\u5341\u4e00\u3001\u5934\u6587\u4ef6\u4fdd\u62a4<\/h1>\n\n\n\n
\u591a\u6587\u4ef6\u9879\u76ee\u4e2d\u7ecf\u5e38\u4f1a\u51fa\u73b0\uff1a<\/p>\n\n\n\n
<\/a>#include <\/span>\"student.h\"<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u800c\u4e0d\u540c\u5934\u6587\u4ef6\u53c8\u4e92\u76f8\u5305\u542b\u3002<\/p>\n\n\n\n
\u56e0\u6b64\u9700\u8981\uff1a<\/p>\n\n\n\n
<\/a>#ifndef STUDENT_H<\/span><\/span>\n<\/a>#define STUDENT_H<\/span><\/span>\n<\/a><\/span>\n<\/a>...<\/span><\/span>\n<\/a><\/span>\n<\/a>#endif<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u4f8b\u5982\uff1a<\/p>\n\n\n\n
<\/a>#ifndef STUDENT_H<\/span><\/span>\n<\/a>#define STUDENT_H<\/span><\/span>\n<\/a><\/span>\n<\/a>typedef<\/span> struct<\/span> {<\/span><\/span>\n<\/a>    char<\/span> name[<\/span>50<\/span>];<\/span><\/span>\n<\/a>    int<\/span> age;<\/span><\/span>\n<\/a>}<\/span> Student;<\/span><\/span>\n<\/a><\/span>\n<\/a>#endif<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u8fd9\u5c31\u662f\uff1a<\/p>\n\n\n\n
Include Guard\u3002<\/strong><\/p>\n\n\n\n
\n\n\n\n
\u4e8c\u5341\u4e8c\u3001\u4e00\u4e2a\u5b8c\u6574\u7684\u5b66\u751f\u7ba1\u7406\u9879\u76ee\u7ed3\u6784<\/h1>\n\n\n\n
\u73b0\u5728\u628a\u4e4b\u524d\u5b66\u7684\u6240\u6709\u4e1c\u897f\u7ec4\u5408\u8d77\u6765\u3002<\/p>\n\n\n\n
student_manager\/\n\u2502\n\u251c\u2500 main.c\n\u2502\n\u251c\u2500 student.c\n\u251c\u2500 student.h\n\u2502\n\u251c\u2500 file.c\n\u251c\u2500 file.h\n\u2502\n\u2514\u2500 config.h<\/code><\/pre>\n\n\n\n
\n\n\n\n
\u4e8c\u5341\u4e09\u3001student.h<\/h1>\n\n\n\n
<\/a>#ifndef STUDENT_H<\/span><\/span>\n<\/a>#define STUDENT_H<\/span><\/span>\n<\/a><\/span>\n<\/a>typedef<\/span> struct<\/span> {<\/span><\/span>\n<\/a>    char<\/span> name[<\/span>50<\/span>];<\/span><\/span>\n<\/a>    int<\/span> age;<\/span><\/span>\n<\/a>    double<\/span> score;<\/span><\/span>\n<\/a>}<\/span> Student;<\/span><\/span>\n<\/a><\/span>\n<\/a>void<\/span> print_student(<\/span>Student *<\/span>p);<\/span><\/span>\n<\/a>void<\/span> add_score(<\/span>Student *<\/span>p,<\/span> double<\/span> score);<\/span><\/span>\n<\/a><\/span>\n<\/a>#endif<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u8d1f\u8d23\uff1a<\/p>\n\n\n\n
Student \u7c7b\u578b\n\u51fd\u6570\u58f0\u660e<\/code><\/pre>\n\n\n\n
\n\n\n\n
\u4e8c\u5341\u56db\u3001student.c<\/h1>\n\n\n\n
<\/a>#include <\/span><stdio.h><\/span><\/span>\n<\/a>#include <\/span>\"student.h\"<\/span><\/span>\n<\/a><\/span>\n<\/a>static<\/span> void<\/span> check_score(<\/span>Student *<\/span>p)<\/span> {<\/span><\/span>\n<\/a>    if<\/span> (<\/span>p-><\/span>score <<\/span> 0<\/span>)<\/span> {<\/span><\/span>\n<\/a>        p-><\/span>score =<\/span> 0<\/span>;<\/span><\/span>\n<\/a>    }<\/span><\/span>\n<\/a><\/span>\n<\/a>    if<\/span> (<\/span>p-><\/span>score ><\/span> 100<\/span>)<\/span> {<\/span><\/span>\n<\/a>        p-><\/span>score =<\/span> 100<\/span>;<\/span><\/span>\n<\/a>    }<\/span><\/span>\n<\/a>}<\/span><\/span>\n<\/a><\/span>\n<\/a>void<\/span> print_student(<\/span>Student *<\/span>p)<\/span> {<\/span><\/span>\n<\/a>    printf(<\/span><\/span>\n<\/a>        \"\u59d3\u540d: <\/span>%s\\n<\/span>\"<\/span><\/span>\n<\/a>        \"\u5e74\u9f84: <\/span>%d\\n<\/span>\"<\/span><\/span>\n<\/a>        \"\u6210\u7ee9: <\/span>%.2f\\n<\/span>\"<\/span>,<\/span><\/span>\n<\/a>        p-><\/span>name,<\/span><\/span>\n<\/a>        p-><\/span>age,<\/span><\/span>\n<\/a>        p-><\/span>score<\/span>\n<\/a>    );<\/span><\/span>\n<\/a>}<\/span><\/span>\n<\/a><\/span>\n<\/a>void<\/span> add_score(<\/span>Student *<\/span>p,<\/span> double<\/span> score)<\/span> {<\/span><\/span>\n<\/a>    p-><\/span>score +=<\/span> score;<\/span><\/span>\n<\/a><\/span>\n<\/a>    check_score(<\/span>p);<\/span><\/span>\n<\/a>}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u8fd9\u91cc\uff1a<\/p>\n\n\n\n
<\/a>static<\/span> void<\/span> check_score(...)<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u662f\u5185\u90e8\u51fd\u6570\u3002<\/p>\n\n\n\n
\u53ea\u6709\uff1a<\/p>\n\n\n\n
student.c<\/code><\/pre>\n\n\n\n
\u81ea\u5df1\u53ef\u4ee5\u4f7f\u7528\u3002<\/p>\n\n\n\n
\n\n\n\n
\u4e8c\u5341\u4e94\u3001file.h<\/h1>\n\n\n\n
<\/a>#ifndef FILE_H<\/span><\/span>\n<\/a>#define FILE_H<\/span><\/span>\n<\/a><\/span>\n<\/a>#include <\/span>\"student.h\"<\/span><\/span>\n<\/a><\/span>\n<\/a>int<\/span> save_students(<\/span><\/span>\n<\/a>    const<\/span> char<\/span> *<\/span>filename,<\/span><\/span>\n<\/a>    Student *<\/span>students,<\/span><\/span>\n<\/a>    int<\/span> count<\/span>\n<\/a>);<\/span><\/span>\n<\/a><\/span>\n<\/a>int<\/span> load_students(<\/span><\/span>\n<\/a>    const<\/span> char<\/span> *<\/span>filename,<\/span><\/span>\n<\/a>    Student *<\/span>students,<\/span><\/span>\n<\/a>    int<\/span> count<\/span>\n<\/a>);<\/span><\/span>\n<\/a><\/span>\n<\/a>#endif<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u8d1f\u8d23\uff1a<\/p>\n\n\n\n
\u6587\u4ef6\u6a21\u5757\u5bf9\u5916\u63d0\u4f9b\u7684\u51fd\u6570\u58f0\u660e<\/code><\/pre>\n\n\n\n
\n\n\n\n
\u4e8c\u5341\u516d\u3001file.c<\/h1>\n\n\n\n
<\/a>#include <\/span><stdio.h><\/span><\/span>\n<\/a>#include <\/span>\"file.h\"<\/span><\/span>\n<\/a><\/span>\n<\/a>int<\/span> save_students(<\/span><\/span>\n<\/a>    const<\/span> char<\/span> *<\/span>filename,<\/span><\/span>\n<\/a>    Student *<\/span>students,<\/span><\/span>\n<\/a>    int<\/span> count<\/span>\n<\/a>)<\/span> {<\/span><\/span>\n<\/a>    FILE<\/span> *<\/span>fp =<\/span> fopen(<\/span>filename,<\/span> \"wb\"<\/span>);<\/span><\/span>\n<\/a><\/span>\n<\/a>    if<\/span> (<\/span>fp ==<\/span> NULL)<\/span> {<\/span><\/span>\n<\/a>        return<\/span> 0<\/span>;<\/span><\/span>\n<\/a>    }<\/span><\/span>\n<\/a><\/span>\n<\/a>    fwrite(<\/span><\/span>\n<\/a>        students,<\/span><\/span>\n<\/a>        sizeof<\/span>(<\/span>Student),<\/span><\/span>\n<\/a>        count,<\/span><\/span>\n<\/a>        fp<\/span>\n<\/a>    );<\/span><\/span>\n<\/a><\/span>\n<\/a>    fclose(<\/span>fp);<\/span><\/span>\n<\/a><\/span>\n<\/a>    return<\/span> 1<\/span>;<\/span><\/span>\n<\/a>}<\/span><\/span>\n<\/a><\/span>\n<\/a>int<\/span> load_students(<\/span><\/span>\n<\/a>    const<\/span> char<\/span> *<\/span>filename,<\/span><\/span>\n<\/a>    Student *<\/span>students,<\/span><\/span>\n<\/a>    int<\/span> count<\/span>\n<\/a>)<\/span> {<\/span><\/span>\n<\/a>    FILE<\/span> *<\/span>fp =<\/span> fopen(<\/span>filename,<\/span> \"rb\"<\/span>);<\/span><\/span>\n<\/a><\/span>\n<\/a>    if<\/span> (<\/span>fp ==<\/span> NULL)<\/span> {<\/span><\/span>\n<\/a>        return<\/span> 0<\/span>;<\/span><\/span>\n<\/a>    }<\/span><\/span>\n<\/a><\/span>\n<\/a>    fread(<\/span><\/span>\n<\/a>        students,<\/span><\/span>\n<\/a>        sizeof<\/span>(<\/span>Student),<\/span><\/span>\n<\/a>        count,<\/span><\/span>\n<\/a>        fp<\/span>\n<\/a>    );<\/span><\/span>\n<\/a><\/span>\n<\/a>    fclose(<\/span>fp);<\/span><\/span>\n<\/a><\/span>\n<\/a>    return<\/span> 1<\/span>;<\/span><\/span>\n<\/a>}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u8fd9\u91cc\u628a\u4e0a\u4e00\u7ae0\u5b66\u7684\uff1a<\/p>\n\n\n\n
\u6587\u4ef6\u64cd\u4f5c<\/code><\/pre>\n\n\n\n
\u5c01\u88c5\u8d77\u6765\u4e86\u3002<\/p>\n\n\n\n
\n\n\n\n
\u4e8c\u5341\u4e03\u3001main.c<\/h1>\n\n\n\n
<\/a>#include <\/span><stdio.h><\/span><\/span>\n<\/a>#include <\/span>\"student.h\"<\/span><\/span>\n<\/a>#include <\/span>\"file.h\"<\/span><\/span>\n<\/a><\/span>\n<\/a>int<\/span> main()<\/span> {<\/span><\/span>\n<\/a><\/span>\n<\/a>    Student students[<\/span>2<\/span>]<\/span> =<\/span> {<\/span><\/span>\n<\/a>        {<\/span>\"Alice\"<\/span>,<\/span> 18<\/span>,<\/span> 95.5<\/span>},<\/span><\/span>\n<\/a>        {<\/span>\"Bob\"<\/span>,<\/span> 19<\/span>,<\/span> 88.0<\/span>}<\/span><\/span>\n<\/a>    };<\/span><\/span>\n<\/a><\/span>\n<\/a>    add_score(&<\/span>students[<\/span>0<\/span>],<\/span> 2.0<\/span>);<\/span><\/span>\n<\/a><\/span>\n<\/a>    for<\/span> (<\/span>int<\/span> i =<\/span> 0<\/span>;<\/span> i <<\/span> 2<\/span>;<\/span> i++)<\/span> {<\/span><\/span>\n<\/a>        print_student(&<\/span>students[<\/span>i]);<\/span><\/span>\n<\/a>        printf(<\/span>\"<\/span>\\n<\/span>\"<\/span>);<\/span><\/span>\n<\/a>    }<\/span><\/span>\n<\/a><\/span>\n<\/a>    save_students(<\/span><\/span>\n<\/a>        \"students.dat\"<\/span>,<\/span><\/span>\n<\/a>        students,<\/span><\/span>\n<\/a>        2<\/span><\/span>\n<\/a>    );<\/span><\/span>\n<\/a><\/span>\n<\/a>    return<\/span> 0<\/span>;<\/span><\/span>\n<\/a>}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\n\n\n\n
\u4e8c\u5341\u516b\u3001\u7f16\u8bd1\u6574\u4e2a\u9879\u76ee<\/h1>\n\n\n\n
\u4f7f\u7528\uff1a<\/p>\n\n\n\n
<\/a>gcc<\/span> main.c student.c file.c -o<\/span> student_manager<\/span><\/code><\/pre><\/div>\n\n\n\n
\u6700\u7ec8\u5f97\u5230\uff1a<\/p>\n\n\n\n
student_manager<\/code><\/pre>\n\n\n\n
Windows\uff1a<\/p>\n\n\n\n
student_manager.exe<\/code><\/pre>\n\n\n\n
\n\n\n\n
\u4e8c\u5341\u4e5d\u3001\u4e3a\u4ec0\u4e48\u8fd9\u6837\u8bbe\u8ba1<\/h1>\n\n\n\n
\u73b0\u5728\u6bcf\u4e2a\u6587\u4ef6\u804c\u8d23\u975e\u5e38\u660e\u786e\uff1a<\/p>\n\n\n\n
main.c\n\u2193\n\u7a0b\u5e8f\u5165\u53e3\n\nstudent.h\n\u2193\n\u5b66\u751f\u6a21\u5757\u63a5\u53e3\n\nstudent.c\n\u2193\n\u5b66\u751f\u6a21\u5757\u5b9e\u73b0\n\nfile.h\n\u2193\n\u6587\u4ef6\u6a21\u5757\u63a5\u53e3\n\nfile.c\n\u2193\n\u6587\u4ef6\u6a21\u5757\u5b9e\u73b0<\/code><\/pre>\n\n\n\n
\u8fd9\u6837\u4ee5\u540e\u4fee\u6539\u6587\u4ef6\u8bfb\u5199\uff1a<\/p>\n\n\n\n
\u53ea\u9700\u8981\u6539 file.c<\/code><\/pre>\n\n\n\n
\u4fee\u6539\u5b66\u751f\u903b\u8f91\uff1a<\/p>\n\n\n\n
\u53ea\u9700\u8981\u6539 student.c<\/code><\/pre>\n\n\n\n
\u4e3b\u7a0b\u5e8f\u4e0d\u7528\u585e\u6ee1\u6240\u6709\u7ec6\u8282\u3002<\/p>\n\n\n\n
\n\n\n\n
\u4e09\u5341\u3001\u63a5\u53e3\u548c\u5b9e\u73b0<\/h1>\n\n\n\n
\u591a\u6587\u4ef6\u7f16\u7a0b\u53ef\u4ee5\u7406\u89e3\u6210\uff1a<\/p>\n\n\n\n
.h\n\u2193\n\u63a5\u53e3\uff08Interface\uff09\n\n.c\n\u2193\n\u5b9e\u73b0\uff08Implementation\uff09<\/code><\/pre>\n\n\n\n
\u4f8b\u5982\uff1a<\/p>\n\n\n\n
<\/a>int<\/span> save_students(...);<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u544a\u8bc9\u5916\u754c\uff1a<\/p>\n\n\n\n
\u6211\u63d0\u4f9b save_students()<\/code><\/pre>\n\n\n\n
\u81f3\u4e8e\u5185\u90e8\uff1a<\/p>\n\n\n\n
fopen\nfwrite\nfclose<\/code><\/pre>\n\n\n\n
\u600e\u4e48\u5b9e\u73b0\uff1a<\/p>\n\n\n\n
\u5916\u90e8\u4e0d\u9700\u8981\u77e5\u9053<\/code><\/pre>\n\n\n\n
\u8fd9\u5c31\u662f\u5c01\u88c5<\/strong>\u3002<\/p>\n\n\n\n
\n\n\n\n
\u4e09\u5341\u4e00\u3001\u4e3a\u4ec0\u4e48\u4e0d\u76f4\u63a5 include\n.c<\/h1>\n\n\n\n
\u4f8b\u5982\u6709\u4eba\u53ef\u80fd\u5199\uff1a<\/p>\n\n\n\n
<\/a>#include <\/span>\"student.c\"<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u901a\u5e38\u4e0d\u5e94\u8be5\u8fd9\u4e48\u505a\u3002<\/p>\n\n\n\n
\u63a8\u8350\uff1a<\/p>\n\n\n\n
<\/a>#include <\/span>\"student.h\"<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u7136\u540e\u7f16\u8bd1\uff1a<\/p>\n\n\n\n
<\/a>gcc<\/span> main.c student.c -o<\/span> main<\/span><\/code><\/pre><\/div>\n\n\n\n
\u539f\u56e0\u662f\uff1a<\/p>\n\n\n\n
.h\n\u2193\n\u63d0\u4f9b\u63a5\u53e3\n\n.c\n\u2193\n\u5355\u72ec\u7f16\u8bd1\n\n\u94fe\u63a5\u5668\n\u2193\n\u8fde\u63a5\u5b9e\u73b0<\/code><\/pre>\n\n\n\n
\u8fd9\u624d\u662f\u6b63\u5e38\u7684\u591a\u6587\u4ef6\u7f16\u7a0b\u65b9\u5f0f\u3002<\/p>\n\n\n\n
\n\n\n\n
\u4e09\u5341\u4e8c\u3001\u7f16\u8bd1\u8fc7\u7a0b\u518d\u7406\u89e3\u4e00\u6b21<\/h1>\n\n\n\n
\u5047\u8bbe\uff1a<\/p>\n\n\n\n
main.c\nstudent.c\nstudent.h<\/code><\/pre>\n\n\n\n
\u9996\u5148\uff1a<\/p>\n\n\n\n
main.c\n\u2193\n\u9884\u5904\u7406\n\u2193\n#include \"student.h\"\n\u2193\n\u5f97\u5230\u9884\u5904\u7406\u540e\u7684 main.c<\/code><\/pre>\n\n\n\n
\u7136\u540e\uff1a<\/p>\n\n\n\n
main.c\n\u2193\n\u7f16\u8bd1\n\u2193\nmain.o<\/code><\/pre>\n\n\n\n
\u540c\u65f6\uff1a<\/p>\n\n\n\n
student.c\n\u2193\n\u9884\u5904\u7406\n\u2193\n\u7f16\u8bd1\n\u2193\nstudent.o<\/code><\/pre>\n\n\n\n
\u6700\u540e\uff1a<\/p>\n\n\n\n
main.o\n+\nstudent.o\n\u2193\n\u94fe\u63a5\n\u2193\n\u53ef\u6267\u884c\u6587\u4ef6<\/code><\/pre>\n\n\n\n
\n\n\n\n
\u4e09\u5341\u4e09\u3001\u53ea\u4fee\u6539\u4e00\u4e2a .c \u6587\u4ef6<\/h1>\n\n\n\n
\u591a\u6587\u4ef6\u7f16\u7a0b\u8fd8\u6709\u4e00\u4e2a\u5f88\u5927\u7684\u597d\u5904\uff1a<\/p>\n\n\n\n
\u5047\u8bbe\uff1a<\/p>\n\n\n\n
main.c\nstudent.c\nfile.c<\/code><\/pre>\n\n\n\n
\u5982\u679c\u53ea\u4fee\u6539\uff1a<\/p>\n\n\n\n
student.c<\/code><\/pre>\n\n\n\n
\u7406\u8bba\u4e0a\u4e0d\u9700\u8981\u91cd\u65b0\u5904\u7406\u6240\u6709\u6e90\u7801\u3002<\/p>\n\n\n\n
\u53ef\u4ee5\uff1a<\/p>\n\n\n\n
student.c\n\u2193\n\u91cd\u65b0\u7f16\u8bd1\n\u2193\nstudent.o\n\nmain.o\n\u2193\n\u7ee7\u7eed\u4f7f\u7528\n\nfile.o\n\u2193\n\u7ee7\u7eed\u4f7f\u7528<\/code><\/pre>\n\n\n\n
\u7136\u540e\u91cd\u65b0\uff1a<\/p>\n\n\n\n
\u94fe\u63a5<\/code><\/pre>\n\n\n\n
\u8fd9\u4e5f\u662f Makefile<\/code> \u540e\u9762\u4f1a\u89e3\u51b3\u7684\u95ee\u9898\u3002<\/p>\n\n\n\n
\n\n\n\n
\u4e09\u5341\u56db\u3001\u8fd9\u5c31\u662f\u4e3a\u4ec0\u4e48\u540e\u9762\u8981\u5b66\nMakefile<\/h1>\n\n\n\n
\u73b0\u5728\u4f60\u53ef\u80fd\u5199\uff1a<\/p>\n\n\n\n
<\/a>gcc<\/span> main.c student.c file.c -o<\/span> main<\/span><\/code><\/pre><\/div>\n\n\n\n
\u6587\u4ef6\u5c11\u7684\u65f6\u5019\u6ca1\u5173\u7cfb\u3002<\/p>\n\n\n\n
\u4f46\u5982\u679c\u53d8\u6210\uff1a<\/p>\n\n\n\n
main.c\nstudent.c\nstudent.h\nfile.c\nfile.h\nmenu.c\nmenu.h\nutils.c\nutils.h\nconfig.c\nconfig.h<\/code><\/pre>\n\n\n\n
\u6bcf\u6b21\u624b\u52a8\uff1a<\/p>\n\n\n\n
<\/a>gcc<\/span> ...<\/span><\/code><\/pre><\/div>\n\n\n\n
\u5c31\u5f88\u9ebb\u70e6\u3002<\/p>\n\n\n\n
\u6240\u4ee5\uff1a<\/p>\n\n\n\n
\u591a\u6587\u4ef6\u7f16\u7a0b\n\u2193\nMakefile<\/code><\/pre>\n\n\n\n
\u662f\u975e\u5e38\u81ea\u7136\u7684\u4e0b\u4e00\u6b65\u3002<\/p>\n\n\n\n
\n\n\n\n
\u4e09\u5341\u4e94\u3001\u672c\u7ae0\u7ec3\u4e60<\/h1>\n\n\n\n
\u7ec3\u4e60 1<\/h3>\n\n\n\n
\u521b\u5efa\uff1a<\/p>\n\n\n\n
main.c\nhello.c\nhello.h<\/code><\/pre>\n\n\n\n
\u8ba9\uff1a<\/p>\n\n\n\n
<\/a>hello();<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u53ef\u4ee5\u6b63\u5e38\u8c03\u7528\u3002<\/p>\n\n\n\n
\n\n\n\n
\u7ec3\u4e60 2<\/h3>\n\n\n\n
\u521b\u5efa\uff1a<\/p>\n\n\n\n
math.c\nmath.h\nmain.c<\/code><\/pre>\n\n\n\n
\u5b9e\u73b0\uff1a<\/p>\n\n\n\n
<\/a>int<\/span> add(<\/span>int<\/span> a,<\/span> int<\/span> b);<\/span><\/span>\n<\/a>int<\/span> sub(<\/span>int<\/span> a,<\/span> int<\/span> b);<\/span><\/span>\n<\/a>int<\/span> mul(<\/span>int<\/span> a,<\/span> int<\/span> b);<\/span><\/span>\n<\/a>int<\/span> div_int(<\/span>int<\/span> a,<\/span> int<\/span> b);<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\n\n\n\n
\u7ec3\u4e60 3<\/h3>\n\n\n\n
\u521b\u5efa\uff1a<\/p>\n\n\n\n
student.c\nstudent.h\nmain.c<\/code><\/pre>\n\n\n\n
\u628a\uff1a<\/p>\n\n\n\n
Student\nprint_student\nadd_score<\/code><\/pre>\n\n\n\n
\u5168\u90e8\u6a21\u5757\u5316\u3002<\/p>\n\n\n\n
\n\n\n\n
\u7ec3\u4e60 4<\/h3>\n\n\n\n
\u521b\u5efa\uff1a<\/p>\n\n\n\n
config.c\nconfig.h\nmain.c<\/code><\/pre>\n\n\n\n
\u4f7f\u7528\uff1a<\/p>\n\n\n\n
<\/a>extern<\/span> int<\/span> max_students;<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u8ba9 main.c<\/code> \u53ef\u4ee5\u8bbf\u95ee config.c<\/code>\n\u4e2d\u5b9a\u4e49\u7684\u53d8\u91cf\u3002<\/p>\n\n\n\n
\n\n\n\n
\u7ec3\u4e60 5<\/h3>\n\n\n\n
\u5728 student.c<\/code> \u4e2d\u521b\u5efa\uff1a<\/p>\n\n\n\n
<\/a>static<\/span> void<\/span> check_score(...)<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u8ba9\u5b83\u53ea\u80fd\u5728\uff1a<\/p>\n\n\n\n
student.c<\/code><\/pre>\n\n\n\n
\u4e2d\u4f7f\u7528\u3002<\/p>\n\n\n\n
\n\n\n\n
\u7ec3\u4e60 6<\/h3>\n\n\n\n
\u628a\u4f60\u4e4b\u524d\u5199\u7684\uff1a<\/p>\n\n\n\n
\u8bfe\u7a0b\u8868\u7a0b\u5e8f<\/code><\/pre>\n\n\n\n
\u62c6\u6210\uff1a<\/p>\n\n\n\n
main.c\ncourse.c\ncourse.h\nfile.c\nfile.h<\/code><\/pre>\n\n\n\n
\u5176\u4e2d\uff1a<\/p>\n\n\n\n
course.c\n\u2193\n\u8bfe\u7a0b\u589e\u5220\u6539\u67e5\n\nfile.c\n\u2193\n\u8bfe\u7a0b\u8868\u4fdd\u5b58\u548c\u8bfb\u53d6\n\nmain.c\n\u2193\n\u83dc\u5355<\/code><\/pre>\n\n\n\n
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