VB.Net中"[]"对类型做什么. [英] What do the '[ ]' do in VB.Net for types.

问题描述

每隔一段时间，您会看到一行代码，例如:

Every once in a while you see a line of code like:

Dim _byte As [byte]

它有什么作用?我只是在网络上找不到对此的任何引用.谢谢

What does it do? I just can''t find any references to this on the web. Thanks

推荐答案

通常，使用"["和]"可以让您使用保留字("next"，"while"等)作为变量名.

Normally, ''['' and '']'' are used let you use reserved words ("next", "while" and so forth) as variable names.

Dim [while] As string

但是，在最佳情况下，这是一种皱着眉头的做法.似乎您也可以使用它们来引用数据类型，并且如果未在其周围用"["和]"''声明数据类型，则将忽略它们.

它们被称为转义名称，MSDN在此处简要讨论它们: http://msdn.microsoft.com/en-us/library/81ed9a62(v=vs.80).aspx [

However this is a frowned-upon practice at the best of times. It would appear that you can also use them to reference a datatype and that they are ignored if a datatype has not been declared with ''['' and '']'' around them.

They are called Escaped Names, and MSDN discusses them briefly here: http://msdn.microsoft.com/en-us/library/81ed9a62(v=vs.80).aspx[^]

I would recommend that you ignore this usage - it may be considered as a bug, and as such it could be fixed at any time.

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