yii2使用magrate新增許可權流程：

1、到專案根目錄（必須是專案環境中，如我的是在虛擬機器中:[root@localhost crm]# php ./yii migrate/create user_rbac）執行指令：php ./yii migrate/create 檔名;

顯示一下說明成功：

Create new migration '/media/psf/crm/console/migrations/m190828_053939_user_rbac.php'? (yes|no) [no]:yes
New migration created successfully.

2、執行：php ./yii migrate

[root@localhost crm]# php ./yii migrate
Yii Migration Tool (based on Yii v2.0.15.1)

Total 1 new migration to be applied:
    m190828_053939_user_rbac

Apply the above migration? (yes|no) [no]:yes
*** applying m190828_053939_user_rbac
*** applied m190828_053939_user_rbac (time: 0.040s)

1 migration was applied.

3、執成功會在表“administrator_auth_item”生成對