使用Git Bash从Gitee上下载代码到本地以及上传代码到码云Git：
**git clone -b branchname https://git.oschina.net/oschina/android-app.git **
https://www.cnblogs.com/babysbreath/p/7274195.html
指定克隆远端分支
https://blog.csdn.net/cckavin/article/details/81462702
添加公钥
针对：
git@gitee.com: Permission denied (publickey).
fatal: Could not read from remote repository.
https://blog.csdn.net/dyy_csdn/article/details/81508809
用远程的代码强制覆盖本地的代码，注意要指定分支
https://blog.csdn.net/zoulonglong/article/details/79562922
https://blog.csdn.net/chenxu6/article/details/79597279
错误列表
fatal: Not a git repository (or any parent up to mount point /home)
Stopping at filesystem boundary (GIT_DISCOVERY_ACROSS_FILESYSTEM not set).
解决办法：git init
服务器上网才能从远端下载代码
python2 login.py -a [login/logout] -u 学校网关账号 -p 学校网关密码