<view wx:for="{{memberList}}" wx:key="index" wx:for-item="item" class="member-item" wx:if="{{index<((isExpand)?memberList.length:(isRewardSucc||(memberList.length>=maxAssistanceNum)?(memberList.length>5?4:5):4))}}">
            <image class="img" src="{{item.headPicture}}"/>
            <view class="nick-name text-overflow">{{item.userName}}</view>
          </view>
<view class="acivity {{(canAssistance&&hasPowerReward&&isAssistance)||isRewardSucc?'has-award-info':''}}"></view>