qixiaobin0715

就题解题，前2列字符目视不超过30个字符，KG30的值取30个空格：

@echo off
set KG30=                              
setlocal enabledelayedexpansion
for /f "tokens=1-3" %%a in (1.txt) do (
set str=%%a%%b%KG30%
set str=!str:~0,30!
set str=!str:%%b=!%%b %%c
echo !str!
)
pause
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qixiaobin0715

根据3楼思路改写，实现列与列之间空格最少：

@echo off
setlocal enabledelayedexpansion
set n=0
for /f "tokens=1,2" %%i in (1.txt) do (
    set "var=%%i%%j"
    set m=0
    call :1
)
for /l %%x in (1,1,!n!) do set KG= !KG!
set /a n+=1
for /f "tokens=1-3" %%a in (1.txt) do (
    set str=%%a%%b%KG%
    for %%y in (!n!) do set str=!str:~0,%%y!
    set str=!str:%%b=!%%b %%c
    echo !str!
)
pause
goto :eof
:1
if not "!var:~%m%,1!"=="" set /a m+=1&goto 1
if %m% gtr %n% set n=%m%
goto :eof
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