[batch] variable verketten

@echo off

set "str=Hello" 
set "out="
set "from=1"
set "to=4"


for /l %%n in (%from%,1,%to%) do (
REM echo %%n
 set "out=%out%%str%%%n "
)


echo %out% 

Hello 4

Hello 1 Hello 2 Hello 4 Hello 4

[COLOR=#000000][FONT=monospace]copy /b file1.mp3+file2.mp3+file3.mp3+file4.mp3 newfile.mp3[/FONT][/COLOR]

@ECHO OFF &SETLOCAL
SET /a count=5
for /l %%a in (1,1,%count%) do call set "Myvar=%%Myvar%%, %%a"
ECHO %Myvar:~2%

1, 2, 3, 4, 5