把下一行的数字复制到前面一行的后面,并用空格分开的批处理

@echo off
:: 把下一行的数字复制到前面一行的后面,并用空格分开
setlocal enabledelayedexpansion
for /f %%i in (test.txt) do (
set /a count+=1
set first=!second!
set second=%%i
if !count! gtr 1 echo !first! !second!
)
pause