首页底部图标颜色，getCategory 还是使用新的页面，

因为只能 更新数据，而首页渲染的格式已经定了

app.json

@@ -16,7 +16,7 @@
   },
   "tabBar": {
     "color": "#dddddd",
-    "selectedColor": "#3cc51f",
+    "selectedColor": "#BF8600",
     "borderStyle": "white",
     "backgroundColor": "#323232",
     "list": [{

pages/category/category.js

@@ -12,11 +12,15 @@ Page({
     })
     product.getCategories(params.type).then(function(result) {
       var data = getApp().store.sync(result.data)
-      that.setData({'items': data})
+      that.setData({items: data})
       wx.setStorage({
-        key:`cate_${params.type}`,
+        key: `cate_${params.type}`,
         data: data
       })
+    }, function(fail) {
+      var key = `cate_${params.type}`
+      var data = wx.getStorage(key)
+      wx.setData({items: data})
     })
   }
 })

pages/category/category.wxml

@@ -1,5 +1,7 @@
 <scroll-view scroll-y="true" height="100%">
   <block wx:for="{{items}}" wx:for-item="item">
-    
+    <view class="item" bindtap="bindShowProduct" data-id="{{item.id}}">
+      <image class="head-img" src="{{item['image-url']}}" mode="aspectFit"></image>
+    </view>
   </block>
 </scroll-view>