Question

我正在尝试创建一个脚本，该脚本从list.txt（由回车分隔的文件目录名称列表）创建一组文件夹，每个文件夹都包含由用户命名的特定数量的子目录。

此脚本可以完全做到这一点并正常工作：

@echo off
setlocal enableextensions

set /P q="How many subdirectories would you like to add in each folder?[0/1/2/3]"
if /I "%q%" EQU "0" goto :somewhere0
if /I "%q%" EQU "1" goto :somewhere1
if /I "%q%" EQU "2" goto :somewhere2
if /I "%q%" EQU "3" goto :somewhere3
if errorlevel 1 goto :problem

:somewhere0
echo All done! Press any key to exit.
pause
exit

...(code cut for brevity)

:somewhere3
set /P c="What is the name of the first subdirectory?"
for /F "tokens=1 delims=," %%d IN (list.txt) DO md "%%c"\"%%d"
set /P c="What is the name of the second subdirectory?"
for /F "tokens=1 delims=," %%d IN (list.txt) DO md "%%c"\"%%d"
set /P c="What is the name of the third subdirectory?"
for /F "tokens=1 delims=," %%d IN (list.txt) DO if not exist %%d md "%%d" cd "%%d" md "%%c" cd ..
if errorlevel 1 goto :problem
goto :somewhere0
...

您得到图片。但是，我试图循环执行此操作，而不是对每个实例进行硬编码。我开发的代码如下：

@echo off
setlocal enableextensions
set "var=string"

set /P q="How many subdirectories would you like to add in each folder?"

for /l %%x in (1, 1, %q%) do (
   set /P c="What is the name of subdirectory %%x?"
    for /F "tokens=1 delims=," %%d IN (list.txt) DO md "%%d\%c%"
)

尝试在循环中间回显变量%% d或％c％不会产生任何结果。陌生人，脚本实际上创建了顶级目录-即，此代码运行

for /F "tokens=1 delims=," %%d IN (list.txt) DO md "%%d

，但未显示子目录。有建议吗？

请注意，我不诚实地知道为什么第一个工作代码要求这种特殊顺序的％符号，但这是我使其工作的唯一方法。

Answer 1

enabledelayedexpansion是您想要的。

@echo off
setlocal enableextensions enabledelayedexpansion
set "var=string"

set /P q="How many subdirectories would you like to add in each folder? "

for /l %%x in (1, 1, %q%) do (
    set /P c="What is the name of subdirectory %%x? "
    for /F "tokens=1 delims=," %%d IN (list.txt) DO md "%%d\!c!"
 )

从cmd.exe的

如果运行setlocal /?，您将获得更多帮助，但是简而言之，enabledelayedexpansion启用了延迟的环境变量扩展。这将导致批处理文件中的变量在执行时而不是在解析时进行扩展。也可以在命令行上以CMD /V:ON启用，而不是批量启用。

您基本上告诉命令处理器延迟变量的解析，直到它执行它们为止。 %用!替换，以显示在扩展中使用哪些变量。

将批处理变量正确传递到嵌套循环中-变量的延迟扩展

1 个答案: