如何SETLOCAL和ENABLEDELAYEDEXPANSION工作？ [英] How do SETLOCAL and ENABLEDELAYEDEXPANSION work?

问题描述

我在大多数脚本注意到，两个通常在同一行这样：

I notice in most scripts, the two are usually in the same line as so:

SETLOCAL ENABLEDELAYEDEXPANSION

是实际上是两个独立的命令，并且可以在单独的行写？

Are the two in fact separate commands and can be written on separate lines?

将设定 ENABLEDELAYEDEXPANSION 如果它被设置在脚本的第一线，而不是禁止，直到脚本结束对脚本产生不利影响？

Will setting ENABLEDELAYEDEXPANSION have an adverse effect on a script if it is set on the first lines of the script and not disabled until the end of the script?

推荐答案

ENABLEDELAYEDEXPANSION 是传递给一个paramater SETLOCAL 命令（看看 SETLOCAL /？）

ENABLEDELAYEDEXPANSION is a paramater passed to the SETLOCAL command (look at setlocal /?)

它的作用和生命为脚本的持续时间，或 ENDLOCAL ：

Its effect lives for the duration of the script, or an ENDLOCAL:

当达到一个批处理脚本结束时，一个隐含 ENDLOCAL 是
  通过该批次发出任何未决 SETLOCAL 执行命令
  脚本。

When the end of a batch script is reached, an implied ENDLOCAL is executed for any outstanding SETLOCAL commands issued by that batch script.

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