p7_4.cpp

相当丰富的C++源码

/*****************************
*   p7_4.cpp                 *
*  构造拷贝构造函数          *
*****************************/
#include <iostream>
using namespace std;
class Clock {
    private:
      int H,M,S;
    public: 
    Clock(int h=0,int m=0,int s=0)
	{
		H=h,M=m,S=s;
		cout<<"constructor:"<<H<<":"<<M<<":"<<S<<endl;
	}
	~Clock()
	{
		cout<<"destructor:"<<H<<":"<<M<<":"<<S<<endl;
	}
	Clock(Clock & p)
	{
		cout<<"copy constructor,before call: "<<H<<":"<<M<<":"<<S<<endl;
	    H=p.H;
		M=p.M;
		S=p.S;
	}
	void ShowTime()
	{
     cout<<H<<":"<<M<<":"<<S<<endl;
	}
};
Clock fun(Clock C)
{
	return C;
}
void main(void)
{ 
    Clock C1(8,0,0);
	Clock C2(9,0,0);
	Clock C3(C1);
	fun(C2);
	Clock C4;
	C4=C2;
}