如何在bat文件中执行字符串操作 [英] How to perform string operation in bat file

问题描述

我有这样的字符串

设置s ="c:\ test \ test1 \ test.exe"

我只需要回显"c:\\ test \ test \ test"的值
如何在批处理文件中做到这一点

i am having the string like that

set s="c:\test\test1\test.exe"

i need echo the value of "c:\\test\test\test" only
how to do that in batch file

推荐答案

解决办法给定了，这是一个直接的代码解决方案，但变量不带引号...

The solution barneyman gave is spot on, here is a direct code solution but with the variable without the quotations...

@echo off
SET var=c:\test\test1\test.exe
@echo %var:~0,-4%
pause

基本上是什么
1)回声切换
2)创建变量字符串
3)将变量字符串从位置0回显到后面的字符-4处...因此它删除了.exe扩展名
4)暂停以查看结果

Basically what it does is
1) Switch of the echo
2) Creates the variable string
3) echo the variable string from position 0 to the back character -4 places...so it removes the .exe extension
4) pause to witness the result

使用〜p仅扩展到路径:

Use ~p to expand to path only:

echo %~ps

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