c# - Protected Internal 和 Internal Protected 之间有区别吗？

Question

public class TestClass
{
    protected internal int FieldA;
    internal protected int FieldB;    
}

protected 内部成员和内部 protected 成员之间有区别吗？

Answer 1

Is there a difference between protected internal and internal protected members?

它们之间没有区别。

protected internal 表示protected 或 internal。

internal protected 表示internal 或 protected。

The type or member can be accessed by any code in the assembly in which it is declared, or from within a derived class in another assembly. Access from another assembly must take place within a class declaration that derives from the class in which the protected internal element is declared, and it must take place through an instance of the derived class type.

在这两者中，protected internal 是常用的。 MSDN page about Access Modifiers 上没有对 internal protected 的引用.

另请查看 Phil Haack 的博客文章 What Does Protected Internal Mean?