$ git push -u origin master
git 命令输入push 返回下边错误信息
Permission denied (publickey).
fatal: Could not read from remote repository.
Please make sure you have the correct access rights
and the repository exists.
权限问题我跟着百度做过几次,不知道对不对,能不能稍微详细的说一下,对这个东西确实是没用过