回调函数(2)

回调函数(二)
实例一

typedef void (*MyFun)(int n, char* str);class Call{private:MyFun myFun;public:void SetFun(MyFun _myFun){myFun = _myFun;     }void LetRun(int n, char* str)              {myFun(n, str);     }  }; void Test(int n, char* str)   //如果不定义全局变量，而定义在类中 则必须是 静态成员函数{while(n>0){cout<<n<<" "<<str<<endl;n--;}} int main(){ Call call;call.SetFun((MyFun)Test);    //调回调函数的接口，并传入一个函数作为参数call.LetRun(10,"hello"); system("pause");return 0;}

#include <iostream>class AClass{public:void method1(){std::cout << "Method 1" << std::endl;}void method2(){std::cout << "Method 2" << std::endl;}};int main(){void (AClass::*Method)(void); AClass  inst1;Method = &AClass::method1;(inst1.*Method)(); AClass* inst2 = new AClass;Method = &AClass::method2;(inst2->*Method)();delete inst2; system("pause");return 0;}