什么是计划"的意义;私人保护" C＃访问修饰符？ [英] What is the meaning of the planned "private protected" C# access modifier?
问题描述
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?
推荐答案
据的专业C＃2008 由De比尔Evjen和Jay格林1699页：
According to "Professional C# 2008" by De Bill Evjen and Jay Glynn, page 1699:
私人保护 - 结果仅在当前装配中派生类型
private protected - "only derived types within the current assembly"
C ++ / CLI有类似的功能 - 定义和消费类和结构（C ++ / CLI）>会员可见：
C++/CLI has a similar feature - Define and Consume Classes and Structs (C++/CLI) > Member visibility:
私人保护 - 或 - 保护私有 - 会员被保护组件内，但私人组装外
private protected-or-protected private- Member is protected inside the assembly but private outside the assembly.
这篇关于什么是计划"的意义;私人保护" C＃访问修饰符？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
