c++ vector struct 使用

//test.h
#include <string>
using namespace  std;
struct AA
{
    string a1;
    string a2;
    string a3;
};



class test
{
public:
    void ReadString(vector<AA> vv);

};

#include "StdAfx.h"
#include "test.h"

void test::ReadString(vector<AA> vv)
{
    vector<AA>::iterator it;
    for (it=vv.begin();it!=vv.end();++it)
    {
        string ss=it->a1;
    }
        
}

void CtttttttDlg::OnBnClickedButton1()
{
    // TODO: Add your control notification handler code here

 
   AA aa1;
   aa1.a1="aaaa11";
   aa1.a2="aaaa12";
   aa1.a3="aaa13";


   AA aa2;
   aa2.a1="aaaa21";
   aa2.a2="aaaa22";
   aa2.a3="aaa23";

   vector<AA> vv;
   vv.push_back(aa1);
   vv.push_back(aa2);

   /*vector<AA>::iterator it;
   for (it=vv.begin();it!=vv.end();++it)
   {
       string ss=it->a1;
   }
  */

   test ts;
   ts.ReadString(vv);

}