我可以命名以数字开头的C#名称空间吗?

问题描述：

我在Mac上，现在无法自己尝试.

I'm on a Mac and can't try it for myself right now.

例如，它将编译:

namespace 2something.something.else { }

答

不，你不能.

名称空间名称是一个标识符，标识符的第一个字符的语法(C#4规范的第2.4.2节)是

A namespace name is an identifier and the grammar for the first character of identifiers (§2.4.2 of C# 4 specification) is

identifier-start-character:
    letter-character
    _ (the underscore character U+005F)

这意味着第一个字符必须是下划线或字母(包括非拉丁文字的字母，例如阿拉伯语或中文).

That means that the first character has to be an underscore or a letter (including letters in non-Latin scripts, such as Arabic or Chinese).