注册 登录
编程论坛 C++教室

谢谢大神对小友的一路指点!不过小友最近有遇到问题了!

蛤蟆001 发布于 2016-09-17 00:15, 1663 次点击
#include <iostream>
class A
{
public:
    A()  { cout << "A Constructor1" <<endl;
    A(int i) { x1=i;cout <<"A Constructor2" <<endl;
    void dispa() { cout << "x1=" << x1 <<endl;};
private:
    int x1;
    };
    class B :public A
    {
    public:
        B() {cout << "b Constructor1" <<endl;}
        B(int i): A(i+10) { x2=i;cout << "B Constructor2" <<endl;}
        void dispb()
        {
            dispb();
            cout << "x2=" <<x2<<endl;
        }
    private:
        int x2;
        };
        void main()
        {
            B b(2);
            b.dispb();
        }

最近看到派生构造函数了,但是这个程序怎么看也看不懂!还请大神给小友分析一下程序是咋运行的???
0 回复
1