git 版本落后推送错误

http://114.215.90.144/student_association/student.git
! [rejected] master -> master (non-fast-forward)
error: failed to push some refs to '
http://114.215.90.144/student_association/student.git' hint: Updates were rejected because a pushed branch tip is behind its remote
hint: counterpart. Check out this branch and 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.

方法一：把本地文件复制一份，然后在把项目从仓库中拉下来

方法二：使用git强制推送命令 git push -f all

方法三： 第一步 ：git push origin +some_branch

第二步：git push -u origin master