如何在Windows命令行上发表评论? [英] How do I comment on the Windows command line?

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问题描述

在Bash中,#用于注释以下内容。如何在Windows命令行上进行注释?

In Bash, # is used to comment the following. How do I make a comment on the Windows command line?

推荐答案

您要查找的命令是 rem ,是 remark的缩写。

The command you're looking for is rem, short for "remark".

还有一个简化版本 :: 有些人会使用,如果您斜视一下并斜着看,这种 看起来像。我最初更喜欢该变体,因为我是一个 bash -aholic,但我仍在尝试忘记BASIC的痛苦日子:-)

There is also a shorthand version :: that some people use, and this sort of looks like # if you squint a bit and look at it sideways. I originally preferred that variant since I'm a bash-aholic and I'm still trying to forget the painful days of BASIC :-)

不幸的是,在某些情况下 :: 会塞满命令行处理器(例如在复杂的 if 中或 for 语句),所以现在我通常使用 rem 。无论如何,这都是骇客行为,是在标签基础结构的基础上进行了修饰,使标签基础结构看起来实际上不是注释。例如,在下面的示例中,尝试用 :: 替换 rem 并查看其工作原理:

Unfortunately, there are situations where :: stuffs up the command line processor (such as within complex if or for statements) so I generally use rem nowadays. In any case, it's a hack, suborning the label infrastructure to make it look like a comment when it really isn't. For example, try replacing rem with :: in the following example and see how it works out:

if 1==1 (
    rem comment line 1
    echo 1 equals 1
    rem comment line 2
)

您还应记住, rem command ,所以您不能像在 bash 这样的行尾敲打它$ c>。它必须去命令会去的地方。例如,这两个中的仅第二个将回显单个单词 hello

You should also keep in mind that rem is a command, so you can't just bang it at the end of a line like the # in bash. It has to go where a command would go. For example, only the second of these two will echo the single word hello:

echo hello rem a comment.
echo hello & rem a comment.

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