子类父类 构造函数析构函数

#include <iostream>  using namespace std;//运算符的重载  class Base//{public:int a;Base(){cout << "父类的不带参的构造函数调用" << endl;}Base(int a){cout << "父类的带参数的构造函数调用" << endl;}~Base(){cout << "父类的析造函数调用" << endl;}void go()//父类  {cout << "父类的go()" << endl;}void go(int a)//父类  {this->a = a;cout << "父类的有参数的go()" << endl;}};//父类 = 基类  子类 = 派生类  class Derive :public Base//学生，公有的继承  {public:Derive() :Base(10)//构造函数,继承父类  {cout << "子类的构造函数调用" << endl;}~Derive(){cout << "子类的析造函数调用" << endl;}void go()//重写这个go(),继承父类  {cout << "子类的无参数的go()" << endl;}void go(int a)//重写这个go(),继承父类  {cout << "子类的带参的go()" << endl;}};void main(){{Derive child;child.go();//子类的go()  child.Base::go();//父类的go(),这个是子类调用父类的方法  child.go(10);}system("pause");}