在Windows中，命令cd / d％〜dp0是什么意思 [英] What does it mean by command cd /d %~dp0 in Windows

问题描述

有人可以帮助我理解命令 cd / d％〜dp0 及其用途。再次使用dos命令

Can someone please help me to understand the command cd /d %~dp0 and its purposes. Again dos command is below

cd /d %~dp0

请帮助我获得它的意义。

Please help me to get the meaning of it.

推荐答案

解剖它。有三个部分：

1. cd - 这是更改目录命令。 / li>
   
2. / d - 此开关使 cd 更改驱动器和目录一旦。没有它，你必须做 cd％〜d0& cd％〜p0 。


3. ％〜dp0 - 可以进一步分为三个部分：
   

1. cd -- This is change directory command.
2. /d -- This switch makes cd change both drive and directory at once. Without it you would have to do cd %~d0 & cd %~p0.
3. %~dp0 -- This can be dissected further into three parts:

1. ％0 - 这代表批处理脚本的第零个参数。


2. ％〜0 - 〜


3. ％dp0 - d 和 p 有扩展的修饰符。 d 强制添加驱动器号， p 添加完整路径。



1. %0 -- This represents zeroth parameter of your batch script. It expands into the name of the batch file itself.
2. %~0 -- The ~ there strips double quotes (") around the expanded argument.
3. %dp0 -- The d and p there are modifiers of the expansion. The d forces addition of a drive letter and the p adds full path.

li>

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