微信小程序循环数据区分点击

 <view wx:for="{{homelist.properties}}"  //外层循环
               wx:for-item="v"
               wx:for-index="i"   
               wx:key="id"        
         >
               <view class="hoemH1">{{v.name}}</view> 
               <view class="homeH2">
                <text                  
                wx:for="{{v.childsCurGoods}}"
                class="homeH3 {{item.id==curentIndex[i]?'active':''}}"
                data-index="{{item.id}}"  //传入id
                data-id="{{i}}"       //传入 上面是第几项
                wx:key="id"
                bindtap="homeColor"
                >{{item.name}}</text> 
               </view>      
         </view>
         
         data:{
              curentIndex:[]
         }
         
           let arr=[];
   
        for (let i = 0; i < res.data.data.properties.length;i++){
          arr.push(res.data.data.properties[i].id)
        }
        this.setData({
          curentIndex: arr
        })
        
        homeColor:function(e){
        console.log(e.currentTarget.dataset)
        let ss = "curentIndex[" + e.currentTarget.dataset.id+"]";
        this.setData({
          [ss]: e.currentTarget.dataset.index
        })
    
      }