chapter4-18.cpp

C++STL程序员开发指南

//文件夹名称:CHAPTER4-18.cpp
#include<afx.h>
#include<afxcoll.h>
#include<iostream.h>

class A:public CObject
{
    WORD age;
public:
	  A(WORD x):age(x){}
WORD operator!(){return age;}
};
void main()
{
  WORD l=0,k;
  A *p;
  CMapWordToOb map;
  for(int i=0;i<5;i++)
  {
while(l==0)cin>>l;
if(i==3)k=l; 
p=new A(l);
map.SetAt(!*p,(A*)p);//如果键值相同，则以新换旧
l=0; 
  }
  cout<<"The total number is "<<map.GetCount()<<endl;
  if(map.Lookup(k,(CObject*&)p))cout<<!*p;//如果返回值不为零则p将得到该对象的地址
  cout<<flush;
  cin.get();
  map.RemoveAll();
}