strcmpC语言中,strcmp( )是什么函数?

C语言中,strcmp( )是什么函数?

函数名: strcmp 功 能: 串比较 用 法: int strcmp(char *str1, char *str2); 程序例: #include <string.h> #include <stdio.h> int main(void) { char *buf1 = "aaa", *buf2 = "bbb", *buf3 = &c"; int ptr; ptr = strcmp(buf2, buf1); if (ptr > 0) printf("buffer 2 is greater than buffer 1 "); else printf("buffer 2 is less than buffer 1 "); ptr = strcmp(buf2, buf3); if (ptr > 0) printf("buffer 2 is greater than buffer 3 "); else printf("buffer 2 is less than buffer 3 "); return 0; }