本文转载自:http://www.cppblog.com/mmdengwo/archive/2011/04/14/144253.aspx
#include <stdio.h>
#include <stdlib.h>int strcmp(char *source, char *dest)
{
while(*source == *dest && *source != ' ' && *dest != ' ')
{ source++; dest++;
}if (*source ==' ' && *dest == ' ') return 0;else return -1;
}int main(){char *str1 = "abcde";char *str2 = "abcde";printf("ret = %d", mystrcmp(str1, str2));return 0;}