connect to host github.com port 22: Connection timed out fatal: Could not read from remote repository.
解释:您的git URL可能已更改。使用以下命令在本地目录中更改URL
解决办法: git remote set-url origin git@yourGitUrlHere
git remote set-url origin git@yourGitUrlHere
git@yourGitUrlHere 这是你的git地址
原文,需要科学上学