4、C++ Mooc | 运算符和运算符重载

运算符实际上是函数，因为早先使用函数做运算不方便阅读，因此出现了运算符，本质是函数。

struct vector1{
	float x,y;
	vector1(float x,float y)
		:x(x) y(y) {}
	
	vector1 Add(const vector1& other) const
	{
		return vector1(x+other.x , y+other.y);
	}
	
	//重载
	vector1 operator+(const vector1 &other) const
	{
		return Add(other);
	}
};

重载<<运算符

std::ostream& operator<<(std::ostream& stream,const vector1 &other)
{
	stream<<other.x<<" , "<<other.y;
	return stream;
}