C++ 正逆序迭代器

#include <iostream>
#include <vector>

using namespace std;

int main()
{
    vector<string> aa;
    aa.push_back("A");
    aa.push_back("B");
    aa.push_back("C");

    //for (vector<string>::reverse_iterator it = aa.rbegin(); it != aa.rend(); it++)
    for (auto it = aa.rbegin(); it != aa.rend(); it++)
    {
        cout << (*it) << " ";
    }
    cout << endl;

    //for (vector<string>::iterator it = aa.begin(); it != aa.end(); it++)
    for (auto it = aa.begin(); it != aa.end(); it++)
    {
        cout << (*it) << " ";
    }
    cout << endl;
}