p4v_batch_submit.bat

@echo off
set base_dir=d:\path\to\folder
set sub_dir[0]=sub_folder1
set sub_dir[1]=sub_folder2
set sub_dir[2]=sub_folder3

for /F "tokens=2 delims==" %%s in ('set sub_dir[') do (
  for %%A in ("%base_dir%\%%s\*") do (
	p4 add "%%A"
  )
)
p4 submit -d "add folder1,folder2,folder3."