Question

用C语言实现 从键盘输入一个一个以回车符结束的字符串，然后将其逆序输出

Answer 1

#include <stdio.h>
#include <string.h>

void main()
{
int i, len;
char temp;
char buf[512] = { 0 };

scanf("%s", buf);
len = strlen(buf);

for (i = 0; i < len/2; i++)
{
temp = buf[i];
buf[i] = buf[len - 1 - i];
buf[len - 1 - i] = temp;
}

printf("%s", buf);
}

Answer 2

#include<stdio.h>
#include<string.h>
void main()
{
char str[1000];
scanf("%s",str);
for(int i=strlen(str)-1;i>=0;i--)printf("%c",str[i]);
printf("\n");
}