成员函数指针数组

C++指针成员函数示例

最新推荐文章于 2024-04-09 23:33:33 发布

原创最新推荐文章于 2024-04-09 23:33:33 发布 · 396 阅读

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#delete

#include<iostream.h>
class Dog
{
public:
void Speak()const{cout<<"Woof!"<<endl;}
void Move()const{cout<<"Walking to heel......"<<endl;}
void Eat()const{cout<<"Eating!"<<endl;}
void Grow()const{cout<<"Grrrr"<<endl;}
void Whimper()const{cout<<"Whining noise...."<<endl;}
void RollOver()const{cout<<"Rolling over...."<<endl;}
void PlayDead()const{cout<<"The end of Little Caesar...."<<endl;}
};

typedef void (Dog::*PDF)() const;/指向Dog类的不接受任何参数且没有返回值的const成员函数
int main()
{
  const int MaxFuncs=7;
  PDF DogFunctions[MaxFuncs]=
  {Dog::Speak,
  Dog::Move,
  Dog::Eat,
  Dog::Grow,
  Dog::Whimper,
  Dog::RollOver,
  Dog::PlayDead
  };
  Dog *pDog=0;
  int Method;
  bool fQuit=false;
  while(!fQuit)
  {
   cout<<"(0)Quit (1)Speak (2)Move (3)Eat (4)Growl";
   cout<<"(5)Whimper (6)RollOver (7)PlayDead :";
   cin>>Method;
   if(Method<=0||Method>=8)
   {
    fQuit=true;
   }
   else
   {
    pDog=new Dog;
    (pDog->*DogFunctions[Method-1])();//调用
    delete pDog;
   }
  }
  return 0;
}