Is isn't in the Sudoers file resolution (turn)

Solution:
First need to switch to root identity
$SU-
(Note that there is-, this is different from Su, when the command "SU" is only switched to root, but does not pass the root environment variables, or the current user's environment variables, with the "Su-" command to bring the environment variables together, like the same as root login

And then
$visudo//Remember, there are no spaces between VI and sudo

1. Move the cursor to the last line
2, press A, enter append mode
3, input
Your_user_name all= (All)
4, press ESC
5, input ": w" (Save file)
6, input ": Q" (exit)

This puts yourself in the sudo group, and you can use the sudo command.