今天想把在公司寫的一些代碼上傳的github上，將本地倉庫和遠程倉庫關聯起來，執行： 【git push -u origin main 】 把本地main branch的代碼推送到遠程的main branch時，報錯：
! [rejected] main -> main (fetch first)
error: failed to push some refs to 'github.com:hijack-621/tpr-website.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.
查資料發現是因為我們在本地新建庫后，與遠程倉庫的內容不一致導致的（遠程倉庫有一些內容本地沒有）。
而且去查看遠程分支：
Administrator@MS-TQHELRTLDMXE MINGW64 /d/phpstudy/WWW (develop) $ git branch -a * develop main
//只看到本地的分支！！！
使用命令：git remote update origin --prune --prune 去更新遠程分支
再次查看所有分支：
Administrator@MS-TQHELRTLDMXE MINGW64 /d/phpstudy/WWW (main) $ git branch -a develop * main remotes/origin/develop remotes/origin/main
但是執行 【git push -u origin main 】 仍舊報錯
! [rejected] main -> main (non-fast-forward) error: failed to push some refs to 'github.com:hijack-621/tpr-website.git' hint: Updates were rejected because the tip of your current branch is behind hint: its remote counterpart. Integrate the remote changes (e.g. hint: 'git pull ...') before pushing again. hint: See the 'Note about fast-forwards' in 'git push --help' for details.
意思大致是：你現在的分支被隱藏了...
不明白為什么會被隱藏【是不是我開了兩個git bash 窗口， 用的同一個sshkey去操作的原因】，難怪 使用 -a 參數查看所有分支時，看不到遠程分支呢。。。= 》》 解決方案：
使用 --force 參數，強制去提交【完成命令 git push -u --force origin main 】【推送本地git中的文件到遠程的 main分支中】。【這里是 使用 gir push --help 】幫助命令時，在git 官方提供的 git-push manual page 頁面中找到的方案！ 下面是官方的解釋！
--force Usually, the command refuses to update a remote ref that is not an ancestor of the local ref used to overwrite it. Also,
when --force-with-lease option is used, the command refuses to update a remote ref whose current value does not match what is expected. This flag disables these checks, and can cause the remote repository to lose commits; use it with care. Note that --force applies to all the refs that are pushed,
hence using it with push.default set to matching or with multiple push destinations configured with remote.*.push may overwrite refs other than the current branch (including local refs that are strictly behind their remote counterpart).
To force a push to only one branch, use a + in front of the refspec to push (e.g git push origin +master to force a push to the master branch).
See the <refspec>... section above for details.