部分

components/classify/navigation/index.js

@@ -1,16 +1,17 @@
 Component({
     properties: {
-        types: Array
+        types: Array,
+        ids: Number
+
     },
     data: {
-        id: 0
     },
     methods: {
         select(a) {
             // console.log(this.data.a.target.dataset.id)
             // console.log(a.target.dataset.id)
             this.setData({
-                id: a.target.dataset.id
+                ids: a.target.dataset.id
             })
             this.triggerEvent("select",{id:a.target.dataset.id})
         }

components/classify/navigation/index.wxml

@@ -1,5 +1,6 @@
     <scroll-view class="navigation" scroll-y="{{true}}" bind:tap="select" >
-      <view wx:for="{{types}}" data-id="{{index}}" class="{{id == index?'on' : ''}}">{{item.name}}</view>
+      <!-- {{ids}} -->
+      <view wx:for="{{types}}" data-id="{{item.id}}" class="{{ids == item.id?'on' : ''}}">{{item.name}}</view>
         <!-- <view data-id="0" class="{{id == 0?'on' : ''}}">热门商品</view>
         <view data-id="1" class="{{id == 1?'on' : ''}}">美容健身</view>
         <view data-id="2" class="{{id == 2?'on' : ''}}">美容健身</view>