#include<stdio.h>
#include<string.h>
void fun(char *w,int m)
{
char t,*p1,*p2;
p1=w,p2=w+m-1;
while(p1<p2)
{
t=*p1;
*p1=*p2;
*p2=t;
p1++,p2--;
}
}
void main()
{
printf("请输入一个字符串:\n");
char s[80],a[80];
gets(s);
strcpy(a,s);
fun(s,strlen(s));
if(strcmp(s,a)==0)
printf("是回文");
else
printf("不是回文");
}