.net - 没有记录条件的 Do ... Loop 在哪里？

Question

显然，可以创建一个 Do ... Loop - 无条件循环。以下代码使用 .NET 4.5 ( fiddle ) 和 Roslyn ( fiddle ) 编译:

Public Sub Main()
    Do
        Console.WriteLine("Hello World")
        Exit Do
    Loop
End Sub

但是，关于 documentation page的语法只提供以下两种选择:

Do { While | Until } condition
    [ statements ]
    [ Continue Do ]
    [ statements ]
    [ Exit Do ]
    [ statements ]
Loop
-or-
Do
    [ statements ]
    [ Continue Do ]
    [ statements ]
    [ Exit Do ]
    [ statements ]
Loop { While | Until } condition

这是编译器中的错误，文档中的错误还是我看起来不够努力？

Answer 1

如有疑问，请咨询 language specification , 而不是引用:

10.9.1 While...End While and Do...Loop Statements

A While or Do loop statement loops based on a Boolean expression. ... An expression may be placed after the Do keyword or after the Loop keyword, but not after both. ... It is also valid to specify no expression at all;

(我的重点)

语言引用试图更直接，但可能会丢失基本细节。语言规范应该与编译器实现的内容相匹配。