multimap的使用

#include <iostream>
#include <map>
#include <string>

using namespace std;

int main()
{
    multimap<string,double> m;
    m.insert(pair<string,double>("Abc",123.2));
    m.insert(pair<string,double>("xyz",-43.2));
    m.insert(pair<string,double>("Abc",123.2));
    m.insert(pair<string,double>("tew",43.2));
    
    for(multimap<string,double>::iterator it = m.begin(); it != m.end(); ++it )
    {
        cout << (*it).first << ":" << (*it).second << endl;
    }
    cout << endl;
    
    return 0;
}