batch-file - 变量内的批处理变量

Question

• 我有一组名为 p1 到 p9 的变量
• 我有 2 个变量来设置我感兴趣的范围。
• 我想列出从最小范围 +1 到最大值的所有变量。

看起来像那样（它不会工作）

set currentvar=5
set maxvar=9
set p1=aaa
set p2=bbb
set p3=ccc
set p4=ddd
set p5=eee
set p6=fff
set p7=ggg
set p8=hhh
set p9=iii
set /a result = %maxvar% - %currentvar%
echo Found %result% vars in the range.
:LOOP
if %currentvar% LSS %maxvar% (
set /a currentvar=%currentvar% + 1
echo %p %currentvar% % //IT WON'T WORK AND I DON'T KNOW HOW TO MAKE IT WORK...
goto LOOP
) else (
goto END
)
:END

我想看到的结果：

fff

ggg 

hhh

iii

Answer 1

this might work for you:

@ECHO OFF &SETLOCAL
set /a currentvar=5
set /a maxvar=9
set /a RangeStart=currentvar+1
set p1=aaa
set p2=bbb
set p3=ccc
set p4=ddd
set p5=eee
set p6=fff
set p7=ggg
set p8=hhh
set p9=iii
set /a result=maxvar-currentvar
echo Found %result% vars in the range.
for /l %%a in (%RangeStart% 1 %maxvar%) do call echo(%%p%%a%%

Answer 2

你需要Enabledelayedexpansion：

@echo off
Setlocal Enabledelayedexpansion
set currentvar=5
set maxvar=9
set p1=aaa
set p2=bbb
set p3=ccc
set p4=ddd
set p5=eee
set p6=fff
set p7=ggg
set p8=hhh
set p9=iii
set /a result = %maxvar% - %currentvar%
echo Found %result% vars in the range.
:LOOP
if %currentvar% LSS %maxvar% (
set /a currentvar=%currentvar% + 1
echo !p%currentvar%! &REM This is how you make a comment in batch
goto LOOP
) else (
goto END
)
:END
Endlocal

那应该做你想做的事。还可以使用新行并键入::或进行评论REM。

莫娜