[ 'user_name.require' => 'Please fill in your account number', 'user_name.unique' => 'Account already exists', 'pwd.regexo' => 'The password must be between 6 and 18 digits', 'pwd.regext' => 'The password must contain numbers', 'pwd.regexth' => 'The password must contain letters', 'real_name.require' => 'Please fill in the name of the administrator', ], ];