diff --git a/packageC/pages/luckyGo/luckyGo_goodsInfo/luckyGo_goodsInfo.wxml b/packageC/pages/luckyGo/luckyGo_goodsInfo/luckyGo_goodsInfo.wxml
index 804df2b..ba9cf72 100644
--- a/packageC/pages/luckyGo/luckyGo_goodsInfo/luckyGo_goodsInfo.wxml
+++ b/packageC/pages/luckyGo/luckyGo_goodsInfo/luckyGo_goodsInfo.wxml
@@ -20,7 +20,7 @@
     </view>
 
 	  <!-- tab选项卡 -->
-    <view class="type-navbar" style="top:{{(top_nav?top_nav-4);0}}px">
+    <view class="type-navbar" style="top:{{top_nav?(top_nav-4):0}}px">
       <view class="type-box" wx:for="{{categories}}" wx:key="categories">
         <view bindtap="tabClick" class="type-navbar-item {{activeCategoryId==item.id?'type-item-on':''}}" id="{{item.id}}">{{item.name}}</view>
       </view>