从master分支copy一个开发分支
$git checkout master $git pull从当前分支拉copy开发分支
$git checkout -b 新分支的名称 Switched to a new branch '新分支的名称'把新建的分支push到远端
$git push origin 新分支的名称拉取远端分支
$git pullThere is no tracking information for the current branch. Please specify which branch you want to merge with. See git-pull(1) for details. git pull <remote> <branch> If you wish to set tracking information for this branch you can do so with: git branch --set-upstream-to=origin/<branch> 新分支的名称关联
$git branch --set-upstream-to=origin/新分支的名称再次拉取 验证
$git pull