在C#中更改变量值时记录类变量状态

public class MyClass
{
    private int myVariable;
    
    // 属性来访问和修改变量
    public int MyVariable
    {
        get { return myVariable; }
        set
        {
            myVariable = value;
            OnVariableChanged();
        }
    }
    
    // 事件来处理变量变化
    public event EventHandler VariableChanged;
    
    protected virtual void OnVariableChanged()
    {
        VariableChanged?.Invoke(this, EventArgs.Empty);
    }
}

public class Program
{
    public static void Main()
    {
        MyClass myObject = new MyClass();
        
        // 订阅事件
        myObject.VariableChanged += MyClass_VariableChanged;
        
        // 更改变量值
        myObject.MyVariable = 10;
    }
    
    private static void MyClass_VariableChanged(object sender, EventArgs e)
    {
        Console.WriteLine("变量已更改");
    }
}