微信小程序中页面FOR循环和嵌套循环

   <view wx:for="{{pinpaitishi}}" wx:key="{{xxx}}">
         <view wx:if="{{item.name!=null}}" wx:key="{{xxxx}}">
         //判断name是否为null
          <view class="tr">
           <view class="td-left"></view>
           <view class="td-right">
            <view bindtap="onclickbypinpai" data-name="{{item.name}}" class="tishi">{{item.name}}</view>
                绑定的方法        参数值
           </view>
          </view>
         </view>
        </view>

<view class="pad10" wx:for="{{twolist}}" wx:key="{{xxx}}">
  <view>
    {{index+1}}、{{item.name}}
  </view>
    <!--二次嵌套循环-->
  <view wx:for="{{item.xxx}}" wx:for-item="xxxx" wx:key="xxxx">
    ----{{xxxx.name}}
  </view>
</view>