// multimap.cpp : 定义控制台应用程序的入口点。
//multimap提供多重映射，第一个值为key,可以重复，第二个为value
#include "stdafx.h"
#include <stdlib.h>
#include <map>
#include <iostream>
#include <string>
using namespace std;
class CStudent
{
public:
CStudent(int index,string name,string sex,string address,int phoneNum)
{
this->m_index=index;
this->m_name=name;
this->m_sex=sex;
this->m_address=address;
this->m_phoneNumber=phoneNum;
}
public:
int m_index;
string m_name;
string m_sex;
string m_address;
int m_phoneNumber;
};
int _tmain(int argc, _TCHAR* argv[])
{
cout<<"--------------mutimap test------------------"<<endl<<endl;
CStudent *stu1=new CStudent(1,"张三","男","北京",123);
CStudent *stu2=new CStudent(2,"李四","男","天津",345);
CStudent *stu3=new CStudent(3,"王五","男","安徽",456);
pair<int,CStudent> p1(1,*stu1);
pair<int,CStudent> p2(1,*stu2);
pair<int,CStudent> p3(2,*stu3);
multimap<int,CStudent> mapStu;
mapStu.insert(p1);
mapStu.insert(p2);
mapStu.insert(p3);
typedef multimap<int,CStudent>::iterator stu_Map_it;
pair<stu_Map_it,stu_Map_it> p=mapStu.equal_range(1);
stu_Map_it i=mapStu.find(1);
cout<<"key 为"<<i->first<<"的学生有"<<mapStu.count(1)<<"个 "<<"分别为："<<endl;
for(stu_Map_it k = p.first; k != p.second; k++)
{
cout<<k->second.m_index<<" "<<k->second.m_name<<" "<<k->second.m_address<<" "<<k->second.m_sex<<" "<<k->second.m_phoneNumber<<endl;
}
cout<<"-------------------删除key重复的学生后----------------"<<endl;
mapStu.erase(i);
cout<<"学生总是为："<<mapStu.size()<<endl;
stu_Map_it it;
for (it=mapStu.begin();it!=mapStu.end();it++)
{
cout<<it->second.m_index<<" "<<it->second.m_name<<" "<<it->second.m_address<<" "<<it->second.m_sex<<" "<<it->second.m_phoneNumber<<endl;
}
system("pause");
return 0;
}