git checkout -b gt210-pool gt210
创建gt210-pool 基于 gt210分支
git push -u origin gt210-pooln
提交gt210代码到gt210-pool
查看分支：git branch
创建分支：git branch <name>
切换分支：git checkout <name>
创建+切换分支：git checkout -b <name>
合并某分支到当前分支：git merge <name>
删除分支：git branch -d <name>
