c# - 自定义对象加法/减法

Question

假设性问题。我的程序中有一个自定义对象，称为 GamePoint。它已正确定义并具有所有必需的成员。我想知道我是否可以实现类似于以下内容的东西:

GamePoint p = new GamePoint(10, 10);
p += new GamePoint(15, 15);
//output: p = {25, 25}

有没有办法实现这样的语法？

Answer 1

当然可以，使用operator overloading :

class GamePoint
{
    private int v1;
    private int v2;

    public GamePoint(int v1, int v2)
    {
        this.v1 = v1;
        this.v2 = v2;
    }

    public static GamePoint operator +(GamePoint a, GamePoint b)
    {
        return new GamePoint(a.v1 + b.v1, a.v2 + b.v2);
    }
}