text: -- 菜单SQL
  INSERT INTO `sys_menu` (`parent_id`, `name`, `url`, `perms`, `type`, `icon`, `order_num`)
      VALUES ('1', '讲师', 'passcodeuser/lecturer', NULL, '1', 'config', '6');
  
  -- 按钮父菜单ID
  set @parentId = @@identity;
  
  -- 菜单对应按钮SQL
  INSERT INTO `sys_menu` (`parent_id`, `name`, `url`, `perms`, `type`, `icon`, `order_num`)
      SELECT @parentId, '查看', null, 'passcodeuser:lecturer:list,passcodeuser:lecturer:info', '2', null, '6';
  INSERT INTO `sys_menu` (`parent_id`, `name`, `url`, `perms`, `type`, `icon`, `order_num`)
      SELECT @parentId, '新增', null, 'passcodeuser:lecturer:save', '2', null, '6';
  INSERT INTO `sys_menu` (`parent_id`, `name`, `url`, `perms`, `type`, `icon`, `order_num`)
      SELECT @parentId, '修改', null, 'passcodeuser:lecturer:update', '2', null, '6';
  INSERT INTO `sys_menu` (`parent_id`, `name`, `url`, `perms`, `type`, `icon`, `order_num`)
      SELECT @parentId, '删除', null, 'passcodeuser:lecturer:delete', '2', null, '6';
  