38 C++ - 函数调用符号()重载

class Complex{
public:
	int Add(int x,int y){
		return x + y;
	}
	int operator()(int x,int y){
		return x + y;
	}
};
void test01(){
	Complex complex;
	cout << complex.Add(10,20) << endl;
	//对象当做函数来调用
	cout << complex(10, 20) << endl;
}