?? memcmp.html
字號:
<html>
<head>
<title>字符串函數 - memcmp</title>
<meta http-equiv="Content-Type" contents="text/html;charset=gb2312">
<link rel="stylesheet" href="clib.css">
</head>
<body>
<table border=0 cellpadding=0 cellspacing=0 bgcolor=#FFFFFF>
<tr><td width=150 valign=top>
<!-- begin left nav -->
<!-- begin logo -->
<table border=0 cellpadding=0 cellspacing=0 bgcolor=#FFFFFF>
<tbody>
<tr>
<td><a href="../clib.html"><img border=0 width=150 height=65 src="images/string.gif"></a></td>
</tr>
</tbody>
</table>
<!-- end logo -->
<!-- begin function list -->
<table border=0 cellpadding=5 cellspacing=0 bgcolor=#FFFFFF width=150>
<tbody>
<tr>
<td>
請選定要查看的函數
</td>
</tr>
<tr>
<td>
<ul>
<li><a href="bcmp.html">bcmp</li>
<li><a href="bcopy.html">bcopy</li>
<li><a href="bzero.html">bzero</li>
<li><a href="memccpy.html">memccpy</li>
<li><a href="memchr.html">memchr</li>
<font color=red>
<li><a href="memcmp.html">memcmp</li>
</font>
<li><a href="memcpy.html">memcpy</li>
<li><a href="memicmp.html">memicmp</li>
<li><a href="memmove.html">memmove</li>
<li><a href="memset.html">memset</li>
<li><a href="movmem.html">movmem</li>
<li><a href="setmem.html">setmem</li>
<li><a href="stpcpy.html">stpcpy</li>
<li><a href="strcat.html">strcat</li>
<li><a href="strchr.html">strchr</li>
<li><a href="strcmp.html">strcmp</li>
<li><a href="strcmpi.html">strcmpi</li>
<li><a href="strcpy.html">strcpy</li>
<li><a href="strcspn.html">strcspn</li>
<li><a href="strdup.html">strdup</li>
<li><a href="stricmp.html">stricmp</li>
<li><a href="strlen.html">strlen</li>
<li><a href="strlwr.html">strlwr</li>
<li><a href="strncat.html">strncat</li>
<li><a href="strncmp.html">strncmp</li>
<li><a href="strncmpi.html">strncmpi</li>
<li><a href="strncpy.html">strncpy</li>
<li><a href="strnicmp.html">strnicmp</li>
<li><a href="strpbrk.html">strpbrk</li>
<li><a href="strrev.html">strrev</li>
<li><a href="strset.html">strset</li>
<li><a href="strstr.html">strstr</li>
<li><a href="strtok.html">strtok</li>
<li><a href="strupr.html">strupr</li>
</ul>
</td>
</tr>
<tr>
<td>目前共有34個函數</td>
</tr>
</tbody>
</table>
<!-- end function list -->
</td>
<td>
<table border=0 cellpadding=0 cellspacing=0 width=600>
<tbody>
<tr>
<td width=1 bgcolor=#649ACC><img border=0 width=1 height=1 src="images/null.gif"></td>
<td>
<!-- beging of middle part -->
<div>
<table border=0 cellpadding=0 cellspacing=0 width=100% height=650>
<tbody>
<tr><td height=1 width=1 bgcolor=#649ACC><img border=0 width=1 height=1 src="images/null.gif"></td></tr>
<tr><td height=62 valign=bottom><b><font size=5>memcmp</font></b></td></tr>
<tr><td>
<table border=0 cellpadding=0 cellspacing=0 height=1 width=100%>
<tbody>
<tr>
<td height=1 width=150 bgcolor=#649ACC><img border=0 width=1 height=1 src="images/null.gif"></td>
<td height=1 bgcolor=#ffffff><img src="images/null.gif" border=0 width=1 height=1></td>
</tr>
</tbody>
</table>
</td></tr>
<tr><td valign=top>
<div>
<!-- begin main body -->
<table border=0 cellpadding=5 cellspacing=5>
<tr><td>
<pre>
原型：extern int memcmp(void *buf1, void *buf2, unsigned int count);
用法：#include <string.h>
功能：比較內存區域buf1和buf2的前count個字節。
說明：
當buf1<buf2時，返回值<0
當buf1=buf2時，返回值=0
當buf1>buf2時，返回值>0
舉例：
// memcmp.c
#include <syslib.h>
#include <string.h>
main()
{
char *s1="Hello, Programmers!";
char *s2="Hello, programmers!";
int r;
clrscr();
r=memcmp(s1,s2,strlen(s1));
if(!r)
printf("s1 and s2 are identical");
else
if(r<0)
printf("s1 less than s2");
else
printf("s1 greater than s2");
getchar();
return 0;
}
相關函數：<a href="memicmp.html">memicmp</a>,<a href="strcmp.html">strcmp</a>
</pre>
</td></tr>
</table>
<!-- end main body -->
</td></tr>
<tr><td height=1 width=1 bgcolor=#649ACC><img border=0 width=1 height=1 src="images/null.gif"></td></tr>
</tbody>
</table>
</div>
<!-- end of middle part -->
</td>
<td width=1 bgcolor=#649ACC><img border=0 width=1 height=1 src="images/null.gif"></td>
</tr>
</tbody>
</table>
</td>
</tr>
</table>
</body>
</html>
?? 快捷鍵說明
復制代碼
Ctrl + C
搜索代碼
Ctrl + F
全屏模式
F11
切換主題
Ctrl + Shift + D
顯示快捷鍵
?
增大字號
Ctrl + =
減小字號
Ctrl + -