复制构造函数


#include <iostream>

using namespace std;

class Triangle

{

public:

    void showMessage();

    Triangle(double x=1,double y=1,double z=1):a(x),b(y),c(z){}

    Triangle(Triangle&s);

private:

    double a,b,c;

};

void Triangle::showMessage()

{

    cout<<a<<" "<<b<<" "<<c<<endl;

}

Triangle::Triangle(Triangle&s)

{

    a=s.a;

    b=s.b;

    c=s.c;

}

int main()

{

    Triangle Tri1(3,4,5);

    Tri1.showMessage();

    Triangle Tri2(Tri1);

    Tri2.showMessage();

    return 0;

}