c语言 9-8

#include <stdio.h>

void put(char x[])
{
    int len = 0;
    while(x[len])
        len++;
    int i = 0;
    while(x[i])
    {
        putchar(x[len - 1 - i++]);    
    }
    putchar(‘\n‘);
}

int main(void)
{
    char str[128];
    printf("str:  "); scanf("%s", str);
    puts("\n=====================");
    put(str);
    return 0;
}

#include <stdio.h>

int put(char x[])
{
    int len = 0;
    while(x[len])
        len++;
    while(len-- > 0)
    {
        putchar(x[len]);
    }
    putchar(‘\n‘);
}

int main(void)
{
    char str[128];
    printf("str:  "); scanf("%s", str);
    puts("\n===================");
    put(str);
    return 0;
}