最近迷上了泛型程式設計，在一個專案中需要用到一個變長對映，於是用map+vector+結構體實現了multimap的基本功能。

特改個demo存檔。

//---------------------------------------------------------------------------
#include <map>
#include<vector>
#include <string>
#include <iostream>
using namespace std;
//---------------------------------------------------------------------------
typedef struct test
{
    char nn[8];
    int xx;
    int yy;
}  Mystruct;

typedef vector< Mystruct>  Myvctor;
typedef map<int,Myvctor>  Mymap;

int main(int argc, char *argv[])
{
    Mystruct st1[2]= {{"aa",12,34},{"bb",21,43}};
    Mystruct st2[3]= {{"AA",11,22},{"BB",33,44},{"CC",55,66}};
    Myvctor myvctor(st1,st1+2);  //直接把陣列初始化進來
    Mymap mymap;
    mymap.insert(pair<int,Myvctor>(1,myvctor));
    myvctor.clear();
    for(int i=0; i<sizeof(st2)/sizeof(st2[0]); i++)
        myvctor.push_back(st2[i]);
    mymap.insert(pair<int,Myvctor>(3,myvctor));
    cout<<"*******  遍 歷  *******" <<endl;    //遍歷
    cout<<"ID :nn  xx  yy" <<endl;
    cout<<"==================================" <<endl;
    Mymap::iterator iter;
    for(iter = mymap.begin(); iter != mymap.end(); iter++)
    {
        Myvctor::iterator it;
        for(it = iter->second.begin(); it != iter->second.end(); it++)
        {
            cout<<iter->first <<" : "<< (*it).nn<<", "<<(*it).xx<<", "<<(*it).yy<<", "<<endl;
        }
        cout<<"==================================" <<endl;
    }
    cout<<"\n*******  查詢= 3  *********" <<endl;         //查詢
    iter=  mymap.find(3);
    if(iter != mymap.end())
    {
        Myvctor::iterator it;
        for(it = iter->second.begin(); it != iter->second.end(); it++)
        {
            cout<<iter->first <<" : "<< (*it).nn<<", "<<(*it).xx<<", "<<(*it).yy<<", "<<endl;
        }
        cout<<"=====================" <<endl;
    }
    system("pause");
    return 0;
}
//---------------------------------------------------------------------------