bi1_1

@echo off
set str=I love,bbs;bathome.net
set str=%str:.net= cn%
for %%i in (%str%) do echo %%i
pauseCOPY

@echo off & setlocal enabledelayedexpansion
set str=I love,bbs;bathome.net
set /a i=0
set str=%str:.net= cn%
for %%i in (%str%) do (
set /a i+=1
if !i!==5 echo %%i
)
pauseCOPY