【练习-053】按要求补全变量嵌套中的批处理代码

fish

请问terse前辈为什么不这样写呢？

1. @echo off&setlocal enabledelayedexpansion
   
2. set "a=bathome"
   
3. set "b=a"&set "c=b"&set "d=c"&set "e=d"
   
4. for %%i in (b c d) do for %%j in (!%%i!) do set %%i=!%%j!
   
5. echo !%e%!
   
6. pause

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pgfj18

1. @echo off
   
2. setlocal enabledelayedexpansion
   
3. set "a=bathome"
   
4. ::以下for循环实现的是set "b=a"&set "c=b"&set "d=c"&set "e=d"
   
5. for %%a in (ba cb dc ed) do set "str=%%a"&set "!str:~,1!=!str:~1!"
   
6. for /l %%i in () do if defined  !e! (call set e=%%!e!%%) else echo !e!&pause&exit

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[ 本帖最后由 pgfj18 于 2010-8-2 22:57 编辑 ]