#include<iostream>
#include<cstring>
using namespace std;
int main()
{
    ///forward最好是數(shù)組，否則出錯(cuò)。
    char  forward[7] = "string";
    cout<<"Before strrev():"<<forward<<endl;
    strrev(forward);
    cout<<"After strrev():"<<forward<<endl;
    return 0;
}