原型：extern int strcmp(char *s1,char * s2，int n);
用法：#include <string.h>
功能：比较字符串s1和s2的前n个字符。
说明：
当s1<s2时，返回值<0
当s1=s2时，返回值=0
当s1>s2时，返回值>0
举例：
// strncmp.c
#include <syslib.h>
#include <string.h>
main()
{
char *s1="Hello, Programmers!";
char *s2="Hello, programmers!";
int r;
clrscr();
r=strncmp(s1,s2,6);
if(!r)
printf("s1 and s2 are identical");
else
if(r<0)
printf("s1 less than s2");
else
printf("s1 greater than s2");
getchar();
clrscr();
r=strncmp(s1,s2,10);
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;
}
相关函数：bcmp,memcmp,stricmp,strnicmp
时间： 2024-11-08 17:20:45