这是什么意思? [英] What Does :: Mean?
问题描述
没错正如标题所说,我觉得我一直在寻找在C#code,当我看到这一段时间回来,我从来没有把它在意,但到底是什么 ::
意味着C#。我觉得我看到的东西像 myVar的::的Process.Start()
Exactly as the title says, I think I was looking at c# code when I saw this a while back, I never took much notice of it, but what does ::
Mean in c#. I think I saw something like myVar::Process.Start()
推荐答案
这是命名空间别名限定符 - 如果你使用的命名空间的别名:
It is the namespace alias qualifier - if you use namespace aliases:
using config = System.Configuration;
...
var value = config::ConfigurationManager.AppSettings["Somthing"];
这有助于当你有类型与在同一范围内的同名歧义。
It helps disambiguating when you have types with the same name in the same scope.
例如 - 如果你有几个腿
类(一个用于家具,一个旅程的腿),无一不是在导入的命名空间,其结果是当您使用腿
在code编译器无法分辨出哪一个你的意思,那么如果你有一个命名空间别名命名空间,你可以使用<别名> ::腿
引用你的意思是确切类型
For example - if you have several Leg
classes (one for furniture, one for the leg of a journey), and both are in imported namespaces, with the result that when you use Leg
in your code the compiler can't tell which one you mean, then if you have a namespace aliases to the namespaces, you can use <alias>::Leg
to refer to the exact type you mean.
有一个默认的别名 全球
全球命名空间。
There is a default alias global
for the global namespace.
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