C#在不同的winform类中更改变量

public class MyClass
{
    private int myVariable;

    public void ChangeVariable()
    {
        myVariable = 10;
    }
}

public class MyClass
{
    public int myVariable;
}

public class AnotherClass
{
    public void ChangeVariable(MyClass myClass)
    {
        myClass.myVariable = 10;
    }
}

public class MyClass
{
    public event Action<int> VariableChanged;

    private int myVariable;

    public void ChangeVariable()
    {
        myVariable = 10;
        VariableChanged?.Invoke(myVariable);
    }
}

public class AnotherClass
{
    public void HandleVariableChanged(int newValue)
    {
        // 处理变量更改的逻辑
    }
}