c# - .net 访问类内部的局部变量

Question

我是 C# 和 .Net 框架的新手，正在努力了解如何做某事。对于这样的事情，我是否依赖继承？

当变量 allDim 为真时，我希望所有类实例为其 dimPercent 返回 0。

public class Program
{
    //if this is true, all rooms should return 0
    public bool allDim = false;
    public class Room
    {
        //0 is lights out. 100 is as bright as possible
        public Room(int dimPercent)
        {
            DimPercent = dimPercent;
        }

        private int dimPercent;
        public int DimPercent
        {
            get
            {
                if (Program.allDim)
                {
                    //if allDim is true, all lights should be dimmed to 0 percent
                    return 0;
                }
                else
                {
                    return dimPercent;
                }
            }

            set
            {
                dimPercent = value;
            }
        }
    }

    public static void Main()
    {
        Room livingRoom = new Room(80);
        Room kitchen = new Room(85);
        Room bedroom = new Room(65);
        allDim = true;
        // This should return 0 since allDim was set to true
        Console.WriteLine(kitchen.DimPercent);
    }
}

创建一个包含 allDim 的基类并允许从这个新基类派生 Room 类对我来说并不合适，因为 allDim 在技术上不是一个属性每个类实例。如果我使用了一些术语，我深表歉意。

Answer 1

如果您将 allDim 设为私有(private)静态字段，那么您可以轻松实现您想要的效果。然而，从责任的角度来看，您应该问问自己是否有任何房间实例应该能够影响其他房间？

public class Room
{
    private static bool allDim = false;
    // I am not sure if we should make this into a static method
    public void SetAllDim(bool isAllDim){
        allDim = isAllDim;
    }
...
}