题解 | #编写函数实现字符串翻转（引用方式）#

#include<bits/stdc++.h>
#include <cstring>
using namespace std;
// write your code here......

int main(){
    string s;
    getline(cin,s);
    string b =s;
    // write your code here......
    string& a = s;
    int i=0,j=0;
    int len=0;
    while(a[i]!='\0')
    {
        len++;
        i++;
    }
    for(j=0;j<len;j++)
    {
        b[j] = a[len-j-1];
    }
    cout<<b;
    return 0;
}