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46 lines
1.1 KiB
HTML
46 lines
1.1 KiB
HTML
<h1>字符串函数 - strcmp</h1>
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<p>原型：extern int strcmp(char *s1,char * s2);</p>
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<p>用法：#include <string.h></p>
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<p>功能：比较字符串s1和s2。</p>
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<p>说明：</p>
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当s1<s2时，返回值<0
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当s1=s2时，返回值=0
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当s1>s2时，返回值>0
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举例：<pre><code class="language-c">
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// strcmp.c
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#include <syslib.h>
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#include <string.h>
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main()
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{
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char *s1="Hello, Programmers!";
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char *s2="Hello, programmers!";
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int r;
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clrscr();
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r=strcmp(s1,s2);
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if(!r)
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printf("s1 and s2 are identical");
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else
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if(r<0)
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printf("s1 less than s2");
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else
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printf("s1 greater than s2");
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getchar();
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return 0;
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}
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</code></pre>相关函数：<a href="bcmp.html">bcmp</a>,<a href="memcmp.html">memcmp</a>,<a href="stricmp.html">stricmp</a>,<a href="strncmp.html">strncmp</a>
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