执行 git push origin master 操作会报该错误：
Permission denied (publickey).
fatal: Could not read from remote repository.
问题：我已经在github上传了SSH公钥，但是却没有在本地添加SSH
解决方法：在本地添加我生成的SSH文件
比如我现在已经在当前文件夹找到了SSH文件
执行：ssh-add 13705038428SSH
就可以了
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问题：
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.
当前路径并非git路径真尴尬，网上一片解说，贼菜
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问题 ： Permission denied (publickey).
fatal: Could not read from remote repository.
git目录下的SSH和公钥不能删，删了就会出现这个错误
解决：重新生成SSH，上传到github，本地再次添加SSH就好了
=pppppppppp
项目整个文件夹直接拖进git项目里，git不会提示新文件状态，需要先创建一个文件夹然后把项目文件夹里的全拷贝进去，就有提示了
=pppppppppp
关于忽略文件
pod只留下podfile，其他忽略，其他成员下载项目后，pod update就行了
*~
.DS_Store
*.xcuserstate
*.xcworkspace
xcuserdata
*.lock
Pods
曹老师8428
