使用Git时遇到的问题
1、git init
2、git add . //"."点代表所有文件
3、git commit -m '注释语句（修改说明）'
4、git remote add origin https://自己要上传到的仓库地址
5、git pull origin master
6、git push -u origin master
上传时遇到的报错信息
failed to push some refs to 'https://github.com/mantou811/demo.git'
hint: Updates were rejected because the remote contains work that you do
hint: not have locally. This is usually caused by another repository pushing
hint: to the same ref. You may want to first integrate the remote changes
hint: (e.g., 'git pull ...') before pushing again.
hint: See the 'Note about fast-forwards' in 'git push --help' for details.
解决方法：
1、强制push（首次上传可用，后期上传需谨慎）
$ git push -u origin master -f
*这样会使远程修改丢失，一般是不可取的，尤其是多人协作开发的时候。
