问题:但我输入sudo visudo
            
            
              bash
              
              
            
          
          sudo: unable to stat /etc/sudoers: No such file or directory
sudo: no valid sudoers sources found, quitting
sudo: error initializing audit plugin sudoers_audit
        解决: 此文件不存在
            
            
              bash
              
              
            
          
          su root # 现在我能登录root
touch /etc/sudoers
vi /etc/sudoers
        添加
            
            
              vim
              
              
            
          
          # in sudoers
root ALL=(ALL) ALL
zz ALL=(ALL) ALL#zz是自己的用户名
%wheel ALL=(ALL) ALL