field($fields)->where($where)->group($group)->order($order)->fetchAll(); } //用户是否存在 public function isExit($where = '', $fields = '*') { return $this->field($fields)->where($where)->fetch(); } public function getUserListPage($where = '', $fields = '*', $order = 'id desc', $limit = '50') { return $this->field($fields)->where($where)->order($order)->limit($limit)->fetchAll(); } }