88.逆序存放字符串

#define _CRT_SECURE_NO_WARNINGS
#include<stdio.h>
#include<string.h>
void fun(char *s, char *t)
{
int i, s1 = 0;
s1 = strlen(s);
for (i = 0;i < s1;i++)
t[i] = s[s1 - i - 1];
for (i = 0;i < s1;i++)
t[s1 + i] = s[i];
t[2 * s1] = 0;
}
int main()
{
char s[100],t[100];
printf("\nPlease enter string s:");
scanf("%s", s);
fun(s, t);
printf("The result is :%s\n", t);
system("pause");
return 0;
}