C++学习笔记（二十三）：c++ 运算符重载

#include<iostream>
#include<string>

struct Vector2 
{
	float x, y;
	Vector2()
	{}
	Vector2(float x, float y)
		:x(x), y(y)
	{}
	//返回值类型Vector2  operator (参数)
	Vector2 operator+ (Vector2 v)
	{
		Vector2 temp;
		temp.x = x + v.x;
		temp.y = y + v.y;
		return temp;
	}
};

int main()
{
	Vector2 v1(1.0, 4.3);
	Vector2 v2(7.3, 9.8);
	//实现两个Vector类对象的属性相加
	//重载运算符+
	Vector2 v3 = v1 + v2;
	std::cout << v3.x << std::endl;
	std::cin.get();
	return 0;
}

#include<iostream>
#include<string>

struct Vector2 
{
	float x, y;
	Vector2()
	{}
	Vector2(float x, float y)
		:x(x), y(y)
	{}
	//返回值类型Vector2  operator (参数)
	Vector2 operator+ (Vector2 v)
	{
		Vector2 temp;
		temp.x = x + v.x;
		temp.y = y + v.y;
		return temp;
	}
};
//重写 << 操作符
std::ostream& operator<< (std::ostream& stream, const Vector2& other)
{
	stream << other.x << " " << other.y;
	return stream;
}
int main()
{
	Vector2 v1(1.0, 4.3);
	Vector2 v2(7.3, 9.8);
	//实现两个Vector类对象的属性相加
	//重载运算符+
	Vector2 v3 = v1 + v2;
	std::cout << v3 << std::endl;
	std::cin.get();
	return 0;
}