I stared at for /? under CMD for ages and I'm still completely confused. Everything online is just copied help documentation for for. What I really need right now is some simple examples. Thanks to all the experts for helping. I know to you these are trivial questions not worth mentioning, but for a newbie I've been messing with this for a long time and still can't get it. Let me thank you in advance first. As for those who are going to tell me to search Baidu or Google, no need to reply. I've already searched. There are no examples, and I can't understand it. Thanks again to the experts. I hope someone can put together a simple tutorial!

