不能被繼承的類

標籤：不能被繼承的類

方法一：通過私人化建構函式

代碼：

#include <iostream>using namespace std;//只能在堆上進行建立class sealedClass{private :sealedClass(){}~sealedClass(){}public:static sealedClass * getInstance(){return new sealedClass();}static void deleteInstance(sealedClass *pInstance ){delete pInstance;}};void main(){   sealedClass *pinstance =sealedClass::getInstance();   sealedClass::deleteInstance(pinstance);}

方法二：

通過虛繼承和模板

#include <iostream>using namespace std;template<typename T> class makeClass{public :friend T;private :makeClass(){}~makeClass(){}};//可移植性差class sealedClass : virtual  public makeClass<sealedClass> {public:sealedClass(){}~sealedClass(){}};/*class Try2 : public sealedClass{Try2(){}~Try2(){}};*/void main(){}