<block wx:for="{{preferList}}" wx:for-item="pre" wx:for-index="idx" wx:key="idx">
    <view class="baomingList {{pre['bg']}}">
      <view style="width:100%">
        <view class="title2">
            <count-down wx:if="{{pre['type']=='6'}}" expire-time='{{loupan.hongbao_ex}}000'  format='剩余{d}天{h}时{mm}分{s}秒'  bind:expire='onExpire' data-index="{{idx}}" />
            <count-down wx:if="{{pre['type']=='12'}}" wx:if="{{pre['type']=='6'}}" expire-time='{{loupan.teams.dateEndStamp}}000'  format='剩余{d}天{h}时{mm}分{s}秒'  bind:expire='onExpire' data-index="{{idx}}" />
          </block>
        </view>
      </view>
    </view>
  </block>
预期效果与实际效果不符，请问这是什么问题呢？