Windows 中的命令 cd /d %~dp0 是什么意思
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What does it mean by command cd /d %~dp0 in Windows
提问by Indranil Sarkar
Can someone please help me to understand the command cd /d %~dp0and its purposes. Again dos command is below
有人可以帮助我理解命令cd /d %~dp0及其目的。再次 dos 命令如下
cd /d %~dp0
Please help me to get the meaning of it.
请帮助我理解它的含义。
回答by wilx
Let's dissect it. There are three parts:
我们来剖析一下。分为三个部分：
cd-- This is change directory command./d-- This switch makescdchange both drive and directory at once. Without it you would have to docd %~d0 & cd %~p0. (%~d0Changs active drive,cd %~p0change the directory).%~dp0-- This can be dissected further into three parts:%0-- This represents zeroth parameter of your batch script. It expands into the name of the batch file itself.%~0-- The~there strips double quotes (") around the expanded argument.%dp0-- Thedandpthere are modifiers of the expansion. Thedforces addition of a drive letter and thepadds full path.
cd-- 这是更改目录命令。/d-- 此开关可以同时cd更改驱动器和目录。没有它，您将不得不这样做cd %~d0 & cd %~p0。（更改%~d0活动驱动器，cd %~p0更改目录）。%~dp0——这可以进一步分解为三个部分：%0-- 这表示批处理脚本的第零个参数。它扩展为批处理文件本身的名称。%~0--~there"在扩展参数周围去掉双引号 ( )。%dp0--d并且p有扩展的修饰符。该d部队另外一个驱动器号和p补充完整路径。
回答by Stephan
~dp0: d=drive, p=path, %0=full path\name of this batch-file.
~dp0: d=drive, p=path, %0=这个批处理文件的完整路径\名称。
cd /d %~dp0will change the path to the same, where the batch file resides.
cd /d %~dp0会将路径更改为批处理文件所在的相同路径。
See for /?or call /for more details about the %~...modifiers.
See cd /?about the /dswitch.
有关修饰符的更多详细信息，请参阅for /?或。
请参见有关开关。call /%~...cd /?/d
