maptest.cpp

C++STL map操作实例介绍。主要演示map的操作技巧和方法。

// mapTest.cpp : Defines the entry point for the console application.
//

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

typedef map<string,int> strMap;
int main(int argc, char* argv[])
{

	strMap mapTest;
	mapTest[string("jjhou")]=0;
	mapTest[string("Jerry")]=1;
	mapTest[string("jason")]=2;

	pair<string,int>value(string("david"),3);
	mapTest.insert(value);
	strMap::iterator it=mapTest.begin();
	for (;it!=mapTest.end();it++)
	{
		cout<<it->first<<' '<<it->second<<endl;
	}
	//实现元素的查找
	strMap::iterator itel;
	itel=mapTest.find(string("mchen"));
	if (itel==mapTest.end())
	{
		cout<<"mchen not found"<<endl;
	}

	itel=mapTest.find(string("Jerry"));
	if(itel!=mapTest.end())
	{
		cout<<"jerry found"<<endl;
	}
	itel->second=9;
	cout<<"The jerry= "<<itel->second<<endl;



	
	
	printf("Hello World!\n");
	return 0;
}