fix

app/index/controller/Checkout.php

@@ -242,7 +242,7 @@ class Checkout extends Controller
                     if ($fromUserId && $fromUserId != $order['user_id']) {
                         $describe = "Giveaway after successful sharing";
                         $payPoints = intval(bcmul($order['pay_price'], '100', 0));
-                        UserModel::setIncPoints(intval($fromUserId), -$payPoints, $describe);
+                        UserModel::setIncPoints(intval($fromUserId), $payPoints, $describe);
                         Cache::delete(UserModel::SHARE_PREFIX . $order['user_id']);
                         ShareKey::delKey($key);
                     }