結果，你猜。。

#include <iostream>
#include <string>

using namespace std;
class Wedgit
{
public:
	Wedgit()
	{
		objectId = count++;
		cout<<"default  :"<< objectId <<endl;
	}
	Wedgit(const Wedgit& b):data(b.data)
	{
		objectId = count++;
		cout<<"copy     :"<< objectId <<endl;
	}
	~Wedgit()
	{
		cout<<"destruct :"<< objectId <<endl;
	}
	Wedgit& operator=(const Wedgit& b)
	{
		data = b.data; 
		cout<<"operator=:"<< objectId <<endl;
		return *this;
	}
private:
	int data;
	int objectId;
	static int count;
};
int Wedgit::count = 0;

Wedgit Play1( const Wedgit& bbb )
{
	cout<<"play1"<<endl;
	return bbb ;
}

int main(int argc, char* argv[])
{	
	Wedgit w1;
	cout << "=====================" << endl;
	Play1(w1);
	cout << "=====================" << endl;
	Wedgit w2 = Play1(w1);
	cout << "=====================" << endl;
	Wedgit w3(Play1((w1)));
	cout << "=====================" << endl;
	Wedgit w4;
	w4 = Play1(w1);
	cout << "=====================" << endl;
	return 0;
}