#include<stdio.h>
int my_strcmp(char*,char*);
void main()
{  char str1[]="The",str2[]="This";
   if(!my_strcmp(str1,str2)) puts("相等");
   else puts("不等");
}
int my_strcmp(char*s1,char*s2)
{	while(*s1==*s2&&*s1!='\0'&&*s2!='\0')
	{s1++;s2++;}
	return(*s1-*s2);
}