Controller\Admin\Setting::saveTransfer PHP Method

    public function saveTransfer()
    {
        $custom_transfer_level['A'] = intval($_POST['transfer-A']);
        $custom_transfer_level['B'] = intval($_POST['transfer-B']);
        $custom_transfer_level['C'] = intval($_POST['transfer-C']);
        $custom_transfer_level['D'] = intval($_POST['transfer-D']);
        $custom_transfer_level['VIP'] = intval($_POST['transfer-VIP']);
        Option::set('custom_transfer_level', json_encode($custom_transfer_level));
        Option::init();
        $result['error'] = 0;
        $result['message'] = '保存完毕';
        return $result;
    }