c++ 复制构造函数示例程序

/*******************************************************
*author：彭晓林
*copyright: 版权所有，翻版不究
*function: 复制构造函数测试程序
******************************************************/

#include <iostream>
#include <string>

using namespace std;

class DEMO
{
public:
DEMO(int a, int b)
{
x = a;
y = b;
}
DEMO(DEMO &demo)
{
x = demo.x;
y = demo.y;

cout<<"复制构造函数被调用"<<endl;
}
void print();

private:
int x;
int y;
};

void DEMO::print()
{
cout<<x<<endl;
cout<<y<<endl;
}

int main()
{
DEMO TestA(1,2);
TestA.print();
cout<<endl;

DEMO TestB(TestA);
TestB.print();

while(1);
}s