diff --git a/webapp/controller/MarketController.class.php b/webapp/controller/MarketController.class.php
index 045906c7..f0caedbb 100644
--- a/webapp/controller/MarketController.class.php
+++ b/webapp/controller/MarketController.class.php
@@ -241,8 +241,7 @@ class MarketController extends BaseController {
                        $originalPrice * $goodsMeta['discount'] : $originalPrice;
 
         $discountPrice .= PRICE_PAD;
-        error_log('discountPrice:' . $discountPrice . ' price:' . $price . ' originPrice:' . $originalPrice);
-        if (!$discountPrice || $price != $discountPrice) {
+        if (!$discountPrice || strcmp($price, $discountPrice) == 0) {
             myself()->_rspErr(500, 'price error');
             return;
         }