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#include <iostream>
#include <stdlib.h>
using namespace std;
class CAT
{
public:
CAT(int a):num(a){ cout << "constructor...." << endl; }
CAT(const CAT& rsh){num=rsh.num;cout<<"copy construtor called \n";}
CAT& operator =(const CAT& rsh)
{
cout << "assigning constructor called" << endl;
num = rsh.num;
return *this;
}
~CAT(){}
private:
int num;
};
int main(int argc, char *argv[])
{
CAT a(10);
CAT b(20);
cout<<"CAT d=a\n";
CAT d=a; //<-----这里会调用，视为CAT d(a)
d = a;
system("PAUSE");
return 0;
}
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