C/C++ 字串反轉

資料來源:https://mp.weixin.qq.com/s/lZ9SsObIMoncjs4ZoyLRlA

線上編譯:https://www.tutorialspoint.com/compile_c_online.php

Code:

#include <stdio.h>

void rechange_str(char *str)
{
    int i, len;
    char tmp;
    if (NULL == str)
    {
        return ;
    }
    len = strlen(str);
    for (i = 0; i < len/2; i ++)
    {
        tmp = str[i];
        str[i] = str[len-i-1];
        str[len-i-1] = tmp;
    }
}

int main()
{
    char str[20] = "hello,world";
    printf("%s\n",str);
    rechange_str(str);
    printf("%s\n",str);
    return 0;
}