Question

创建一个HashMap对象，并在其中添加一些学生的姓名和他们的分数，键为学生姓名（

Answer 1

#include "stdafx.h"
#include <iostream>
#include <hash_map>
#include <string>
using namespace std;

int _tmain(int argc, _TCHAR* argv[])
{
stdext::hash_map<std::string, float> hm;
hm.insert(std::make_pair<std::string, float>("A", 70.0));
hm.insert(std::make_pair<std::string, float>("C", 75.0));
hm.insert(std::make_pair<std::string, float>("B", 80.0));
stdext::hash_map<std::string, float>::iterator it;
for(it = hm.begin(); it!= hm.end(); ++it)
{
cout <<it->first<<" "<<it->second << std::endl;
}
return 0;
}