学步园

map/multimap 简单使用

#include <vector>
#include <iostream>
#include <iterator>
#include <map> 
using namespace std;
int main()
{    
	vector<int> v; 
	v.push_back(1); 
	v.push_back(2); 
//	ostream_iterator<int> output(cout,"*"); 
	ostream_iterator<int> output(cout,"\n"); 
	copy(v.begin(),v.end(),output); 
	
	typedef multimap <int, int> mmap1;
	typedef multimap<long ,pair<long,string> > mmap2;
	mmap1 m1;
	mmap2 m2;
	

    
    
     m1.insert( std::make_pair<int, int>(2, 10) );
   	 m1.insert( std::make_pair<int, int>(2, 20) );
     m1.insert( std::make_pair<int, int>(2, 30) );
     
     std::multimap<int, int>::iterator iter = m1.find(2);
     
     while (iter!=m1.end() && iter->first==2)
    {    
         cout<<iter->second<<endl;
         // ...     
         iter++;
         
    }
	
    m2.insert(std::make_pair<int, pair<long,string> >(10, make_pair(11,"sb11") ) );
    m2.insert(std::make_pair<int, pair<long,string> >(2,  make_pair(12,"12"  ) ) );
    m2.insert(std::make_pair<int, pair<long,string> >(10, make_pair(13,"2b13") ) );
    
	
	
	multimap<long ,pair<long,string> >::iterator iter2 = m2.find(10);
	
    while ( iter2 != m2.end() && iter2->first == 10 )
    {    
         cout<<iter2->second.first<<":"<<iter2->second.second<<endl;
         // ...     
         iter2++;
         
    }
	
	getchar();
	return 0;
}