c++中的dictionary对象：map的使用备忘

#include <map>
#include <iostream>

using namespace std;

　　
void main()
{

    map <string, int> dic;
    dic.insert(pair<string, int>("a", ));
    dic.insert(pair<string, int>("b", ));
    dic.insert(pair<string, int>("a", )); //allow duplicate key
    dic.insert(pair<string, int>("c", ));
    dic.insert(pair<string, int>("d", ));
    dic.insert(pair<string, int>("e", ));
    dic["c"] = ;

    map<string,int>::iterator finder;;
    finder=dic.find("c");

    if(finder==dic.end())
        cout<<"we do not find 112"<<endl;
    else
    {
        cout<<"total:"<<dic.size()<<endl;
        cout<<"wo find c:"<<dic["c"]<<endl;
        dic.erase(finder); //delete
        cout<<"total:"<<dic.size()<<endl;
    } 

    int c =;
    c = getchar();
}