逆转字符串

#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
int main()
{
	char ch[105];
	char temp;
	gets(ch);
	int len = strlen(ch);
	for (int i = 0; i < len / 2; i++)
	{
		temp = ch[i];
		ch[i] = ch[len - i - 1];
		ch[len - i - 1] = temp;
	}
	printf("%s", ch);
}