c++中私有继承和公有继承的特点
当类的继承方式为私有继承时，基类中的公有成员和保护成员都以私有成员的身份出现在派生类中，而基类中的私有成员在派生类中不可直接访问。上面继承类对象调用的函数都是派生类自身的公有成员，因为私有继承不可访问基类中的成员
#include <iostream>using namespace std;class point {public:void xpoint(int x=0,int y=0){this->x=x;this->y=y;}void move(int oof,int ooh){x+=oof;y+=ooh;}int getx(){return x;}int gety(){return y;}private:int x,y;};class ccc:private point{public:void xccc(int a,int b,int c,int d){xpoint(a,b);this->c=c;this->d=d;}void move(int oof,int ooh){point::move(oof,ooh);}int getx(){return point::getx();}int gety(){return point::gety();}int getm(){return c;} int getd(){return d;} private:int c,d;};int main(){ccc mm;mm.xccc(2,3,10,20);mm.move(10,10);cout<<mm.getx()<<"," <<mm.gety()<<"," <<mm.getm()<<"," <<mm.getd()<<endl;return 0;}
公有继承。基类的公有成员和保护成员的访问属性在派生类中不变，而基类的私有成员不可直接访问
#include<iostream>using namespace std;class point {public:void xpoint(int x=0,int y=0){this->x=x;this->y=y;}void move(int oof,int ooh){x+=oof;y+=ooh;}int getx(){return x;}int gety(){return y;}private:int x,y;};class ccc:public point{public:void xccc(int a,int b,int c,int d){xpoint(a,b);this->c=c;this->d=d;}int getm(){return c;} int getd(){return d;} private:int c,d;};int main(){ccc mm;mm.xccc(2,3,10,20);mm.move(10,10);cout<<mm.getx()<<"," <<mm.gety()<<"," <<mm.getm()<<"," <<mm.getd()<<endl;}