1.登录root权限账号，编辑/etc/sudoers文件

2.找到"root    ALL=(ALL)       ALL"，并在下面添加普通用户

格式：username ALL=(ALL)       ALL

vim /etc/sudoers

## Next comes the main part: which users can run what software on 
## which machines (the sudoers file can be shared between multiple
## systems).
## Syntax:
##
##      user    MACHINE=COMMANDS
##
## The COMMANDS section may have other options added to it.
##
## Allow root to run any commands anywhere 
root    ALL=(ALL)       ALL
deployer ALL=(ALL) ALL