foxJL

@echo off&setlocal enabledelayedexpansion
::右边最多只能有20个空格
for /f "tokens=1,*" %%i in (a.txt) do (
 set num=0
 set blank=
 set a=%%j
 for %%z in (%%j) do (set fin=%%z)
 for /l %%x in (1,1,20) do (
 set blank= !blank!
 if "!a:~-%%x!"=="!blank!" set /a num+=1
 )
 call set b=%%a:~0,-!num!%%#
 call set fina=%%b:!fin!#=%%
 echo !fin! !fina!
)
pause
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