编程---------------map的一些函数整理---------------

#include <iostream>
#include <string>
#include <map>
using namespace std;
class CTestClass1
{
public:
	CTestClass1(string str)
	{
		m_str=str;
	}
	virtual ~CTestClass1()
	{
	   cout<<m_str<<" is ~~CTestClass1"<<endl;
	}
	string name()
	{
	   	return m_str;
	}
	string m_str;
};

typedef std::map<string, CTestClass1*> MAP_TYPE;
int main ()
{
	MAP_TYPE  mymap;
	MAP_TYPE::iterator it;
		
  
	CTestClass1 *temp1=new CTestClass1("monitor");
	CTestClass1 *temp2=new CTestClass1("talk");
	CTestClass1 *temp3=new CTestClass1("alarm");
	CTestClass1 *temp4=new CTestClass1("sdcard");
	
  mymap["monitor"]=temp1;
  mymap["talk"]=temp2;
  mymap["alarm"]=temp3;
  mymap["sdcard"]=temp4;

  it=mymap.find("monitor");
  mymap.erase(it);
  mymap.erase (mymap.find("talk"));
 cout<<"mymap size is:"<<mymap.size()<<endl;
 
 it=mymap.find("alarm");   ///<----find command...
 if(it!=mymap.end())
 {
    CTestClass1 *temp=(*it).second;
    cout<<"*it .second is "<< temp->name()<<endl;
 }	

  return 0;
}