结构的变量值在c#中自动更改。

using System;

struct Point
{
    public int X;
    public int Y;
}

class Program
{
    static void Main(string[] args)
    {
        Point p1 = new Point();
        p1.X = 10;
        p1.Y = 20;

        Point p2 = p1; // 创建p1的副本p2

        p2.X = 30; // 修改p2的值

        Console.WriteLine("p1: X = {0}, Y = {1}", p1.X, p1.Y);
        Console.WriteLine("p2: X = {0}, Y = {1}", p2.X, p2.Y);
    }
}

p1: X = 10, Y = 20
p2: X = 30, Y = 20