中国DOS联盟

@echo off
set /a num=0,_num=0,max=0
setlocal enabledelayedexpansion
for /f "delims=" %%i in (test.txt) do (
    set /a num+=1,_num=0
    for %%j in (%%i) do (
        set /a _num+=1
        set str!num!_!_num!=%%j
        if !_num! geq !max! set max=!_num!
    )
)
for /l %%i in (1,1,%max%) do (
    set "res="
    for /l %%j in (1,1,%num%) do (
       set "var=!str%%j_%%i!     "
       set "res=!res!!var:~0,5!"
    )
    echo !res!
)
pause