windows 批量连接字符串和变量
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Concatenating strings and variables in batch
提问by ProtoVB
I would like to create a dynamic file path in .batfile. At the moment the file path looks like this:
我想在.bat文件中创建一个动态文件路径。目前文件路径如下所示：
"C:\FolderA\FolderB\FileA.xlsx"
I would like to incorporate today's date in the file name to produce something like that:
我想在文件名中加入今天的日期以产生类似的东西：
/exp:"C:\FolderA\FolderB\FileA " & date() & ".xlsx" /T`
I have tried creating a variable and concatenating it with the hard coded part but it does not work:
我尝试创建一个变量并将其与硬编码部分连接，但它不起作用：
set Mydate=!date:~10,4!!date:~7,2!!date:~4,2!
/exp:"C:\FolderA\FolderB\FileA "&%Mydate%&".xlsx" /T
What are the rules on concatenating characters and variables and on quotation marks in batch? How to debug in batch using Notepad?
批量连接字符和变量以及引号的规则是什么？如何使用记事本批量调试？
采纳答案by Stephan
?
?
/exp:"C:\FolderA\FolderB\FileA "&%Mydate%&".xlsx" /T
?
?
This is not cmdsyntax. To set a variable, use the setcommand. Also to concatenate, you don't have (read: must not) use something like concatenation symbols:
这不是cmd语法。要设置变量，请使用该set命令。同样要连接，您没有（阅读：不得）使用连接符号之类的东西：
set "var=C:\FolderA\FolderB\FileA %Mydate%.xlsx"
(whatever /exp:or /tis supposed to do - it does not work in cmd)
（无论做什么/exp:或/t应该做什么 - 它都不起作用cmd）
To rename a file, use ren(or the long form rename). To get help to a command use command /?e.g. rename /?
要重命名文件，请使用ren（或长格式rename）。要获得命令的帮助，请使用command /?例如rename /?
