#include <stdio.h>
#include <string.h>
int main()
{
char s[80], * t1, * t2;
int m;
gets(s);
m = strlen(s);
t1 = s;
t2 = s + m - 1;
while(t1 < t2)
{
if (*t1 != *t1) break;
else {
t1++;
t2--;
}
if (t1 < t2)
pritnf("NO\n");
else
printf("YES\n");
}
return 0;
}
请问21行处 if(t1 < t2) 是怎么判断它们不相同的?