windows 如何在Windows上将变量设置为父目录的路径？
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How to SET a variable to the path of parent directory on windows?
提问by Peter Perhá?
Struggling with command line again, I have figure out that I can store the current working directory in a variable like so:
再次与命令行苦苦挣扎，我发现我可以将当前工作目录存储在一个变量中，如下所示：
SET current=%cd%
How would I set parent though? SET parent=%..%does not work, as it echoes %..%
我将如何设置父级？SET parent=%..%不起作用，因为它回响%..%
Basically, calling a batch script C:\a\b\myscript.batwith the following contents:
基本上，调用C:\a\b\myscript.bat具有以下内容的批处理脚本：
@echo off
set current=%cd%
echo %current%
prints C:\a\band I should like to seta variable parentso that it would print C:\awithout changing the current working directory to ..
打印C:\a\b，我想设置一个变量，parent以便在C:\a不将当前工作目录更改为..
Is this possible?
这可能吗？
回答by Binary Worrier
Move up a directory, remembering the current, set the parent, and then pop down a directory, back to where you started
上移一个目录，记住当前，设置父目录，然后下一个目录，回到你开始的地方
@echo off
set current=%cd%
pushd ..
set parent=%cd%
popd
echo current %current%
echo parent %parent%
回答by RBerteig
You could also do something like this:
你也可以做这样的事情：
set current=%CD% set parent=%CD%\..
It doesn't give you the canonical name of the parent, but it should always be a valid path to the parent folder. It will also be somewhat faster than the solutions involving pushd and popd, but that won't be the primary consideration in a batch file.
它不会为您提供父文件夹的规范名称，但它应该始终是父文件夹的有效路径。它也将比涉及 pushd 和 popd 的解决方案快一些，但这不是批处理文件中的主要考虑因素。
Edit:Note that all of the solutions so far, including mine here, will have problems if the current folder is the root of a drive. There is no clean and easy way out of that one, since there really is no parent of a drive visible to user mode.
编辑：请注意，如果当前文件夹是驱动器的根目录，则到目前为止的所有解决方案，包括我的解决方案，都会出现问题。没有什么干净和简单的方法可以解决这个问题，因为对于用户模式确实没有可见的驱动器的父级。
回答by Richard
Use
用
pushd targetFolder
set current=%cd%
popd
Pushd/popd maintain a stack of previously visited directories.
Pushd/popd 维护一堆以前访问过的目录。
