git is a distributed version control system git is a free software distributed under the GPL git has a mutable index called stage and is easyly to use git is a distributed version control system git is free software distributed under the GPL git has a mutable index called stage git tracks changes of files Creating a new branch is quick and simple haorun heyangmei 小哥才露尖尖角 hrpc1 YYY hrpc2 XXX