什么是计划"的意义;私人保护" C＃访问修饰符？

由于罗斯林 CodePlex上的文档的一部分，有一个名为的语言功能实现状态，计划语言功能为C＃和VB。

As part of the Roslyn documentation on CodePlex, there's a page called Language feature implementation status, with planned language features for C# and VB.

一个特点我找不到ŧ总结我的头周围是私人保护访问修饰符：

One feature I couldn't wrap my head around was private protected access modifier:

private protected string GetId() { … } 

还有的C#语言设计说明的，这也解释了许多新的功能，但不是这一个。

There is also a page of C# Language Design Notes, which explains many new features, but not this one.

埃里克利珀中的评论：

您的错误是在修饰符越来越多的限制的思考。其实修饰符总是下降的限制。请记住，事情是私有默认情况下;只有通过添加改性剂才能让他们少受限制。

Your error is in thinking of the modifiers as increasing restrictions. The modifiers in fact always decrease restrictions. Remember, things are "private" by default; only by adding modifiers do you make them less restricted.

什么是的意思私人保护？什么时候我可能会使用它？

What is the meaning of private protected? When might I use it?