1.异常描述：
在git bash执行命令$ git push -u origin master出错，具体错误提示如下：
sweeneys@DESKTOP-QN9HAJ5 MINGW64 ~/learngit (master)$ git push -u origin masterTo github.com:xinhuiqin/learngit.git ! [rejected] master -> master (fetch first)error: failed to push some refs to 'git@github.com:xinhuiqin/learngit.git'hint: Updates were rejected because the remote contains work that you dohint: not have locally. This is usually caused by another repository pushinghint: to the same ref. You may want to first integrate the remote changeshint: (e.g., 'git pull ...') before pushing again.
hint: See the 'Note about fast-forwards' in 'git push --help' for details.
2.问题分析
出现错误的主要原因是github中的README.md文件不在本地代码目录中。
3.解决方法
（1）可以通过如下命令进行代码合并【注：pull=fetch+merge】
git pull --rebase origin master
（2）再执行语句：
git push -u origin master
即可完成代码上传到github。
