$git push origin master //把本地源码库push到Github上
$git pull origin master//从Github上pull到本地源码库
$git config --list //查看配置信息
$git status //查看项目状态信息
$git branch //查看项目分支
$git checkout -b host//添加一个名为host的分支
$git checkout 分支名//切换分支
$git merge host //合并分支host到主干
$git branch -d host //删除分支host