git提交冲突：To https://gitee.com/men_zi_qi/practical-training.git ! [rejected] dev -＞ dev (fetch first）

git提交后发生冲突：To https://gitee.com.git
! [rejected] dev -> dev (fetch first)
error: failed to push some refs to ‘https://gitee.com/men_zi_qi/practical-training.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.

产生原因：同一个项目，不同员工操作相同位置提交后发生冲突。

解决方法：

按照它的提示：

1. git pull origin dev
   
   它尝试自动合并后失败了，说需要去手动合并。

2. 去代码中看，会发现多出来一段神奇的代码
   

以上代码是 员工A和员工B同时提交造成的

3. 以下所框起来的代码就是产生冲突的代码
   HEAD自己的代码；=======远程的代码
   

4. 手动删除 并合并 解决冲突
   

5. 命令行再次提交：搞定

git add .
git commit -m '解决冲突了啊哈'
git push origin dev

6. 正常流程需另一位提交员工：git pull origin dev 完美