在C++中移动语义2d向量

class Vector2D {
public:
    Vector2D(double x = 0, double y = 0) : m_x(x), m_y(y) {}

    // 移动构造函数
    Vector2D(Vector2D&& other) noexcept {
        m_x = other.m_x;
        m_y = other.m_y;
        other.m_x = 0;
        other.m_y = 0;
    }

    // 移动赋值运算符
    Vector2D& operator=(Vector2D&& other) noexcept {
        if (this != &other) {
            m_x = other.m_x;
            m_y = other.m_y;
            other.m_x = 0;
            other.m_y = 0;
        }
        return *this;
    }

    // 普通成员函数
    double getX() const { return m_x; }
    double getY() const { return m_y; }

private:
    double m_x;
    double m_y;
};

int main() {
    // 创建一个2D向量
    Vector2D vec1(2.5, 3.7);

    // 使用移动构造函数将vec1的资源所有权转移到vec2
    Vector2D vec2(std::move(vec1));

    // 输出vec2的分量
    std::cout << "vec2: x = " << vec2.getX() << ", y = " << vec2.getY() << std::endl;

    // 使用移动赋值运算符将vec2的资源所有权转移到vec3
    Vector2D vec3;
    vec3 = std::move(vec2);

    // 输出vec3的分量
    std::cout << "vec3: x = " << vec3.getX() << ", y = " << vec3.getY() << std::endl;

    return 0;
}