1 #include 
     
       2 #include 
      
        3 #include 
       
         4 #include 
        
          5 using namespace std; 6  7  8 class AVP 9 {10 private:11     char *name;12 public:13     AVP()14     {15         name = NULL;16     }17     18     AVP(const char* _name)19     {20         name = new char[strlen(_name) + 1];21         strcpy(name, _name);22     }23     char* getName()24     {25         return name;26     }27 };28 29 class Read: public vector
         
          30 {31 public:32     bool startup()33     {34         AVP* a1 = new AVP("apple");        35         push_back(a1);36         a1 = new AVP("orange");        37         push_back(a1);38         a1 = new AVP("pear");        39         push_back(a1);40         41     }42     static Read* getInstance()43     {44         if(instance == NULL)45             instance = new Read();46         return instance;47     }48     void print()49     {50         iterator it = begin();51         for(; it != end(); ++it)52         {53             cout<<(*it)->getName()<
          
           startup();69 Read::getInstance()->print();70 71 72 return 0;73 }
          
         
        
       
      
     

如果不理解Read类从public vecotr<AVP*>继承的话，可以这样，vector<AVP*> _avp; 

Read类从_avp继承,这样就很好理解了，直接看代码