字符串函数 - strcmp

原型:extern int strcmp(char *s1,char * s2);

用法:#include <string.h>

功能:比较字符串s1和s2。

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:


      // strcmp.c
      
      #include <syslib.h>
      #include <string.h>

      main()
      {
        char *s1="Hello, Programmers!";
        char *s2="Hello, programmers!";
        int r;
        
        clrscr();
        
        r=strcmp(s1,s2);
        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,strncmp