classRoll/front/pages/upteach/upteach.wxml

<view class="container">
  <view class="classname"><text>{{LessonName}}</text></view>
  <view class="blackboard">
    <image src="/images/upteach/blackboard.png" mode="widthFix"></image>
  </view>
  <!-- 点击按钮触发事件，向服务器发送请求查询该课程的状态，若-status=0，未上课，可以上课。否则显示结束上课 -->
  <view>
    <button wx:if="{{!LessonStatus}}" class="class_button" bind:tap="OnLession" style="width: 450rpx; height: 100rpx;">开始上课</button>
    <button wx:else class="class_button" bind:tap="OffLession" style="width: 450rpx; height: 100rpx;">结束上课</button>
  </view>
  <!-- <view class="teacher">  

  <image src="/images/upteach/teacher.png" mode="widthFix"></image>  

</view>   -->
<view class="roll">
    <view class="scroll-text" animation="{{animation}}">  
          {{displayText}}  
        </view> 
    <image src="/images/upteach/teacher.png" mode="widthFix" class="teacher"></image>
  </view>
  
  <view class="surperise">

    <image hidden="{{!LessonStatus}}" src="/images/icon/calendar.png" mode="widthFix" class="s"></image>

    <view class="word">

      <view hidden="{{!Roll_Method}}" class="s1">{{Pick_Rule[Roll_Method]}}</view>

    </view>

  </view>

  <view hidden="{{!LessonStatus}}"><button class="class_button" bind:tap="PickStudent" style="width: 450rpx; height: 100rpx;">课堂抽点</button></view>

  <view hidden="{{!LessonStatus}}" class="evaluate" style="width: 530rpx; height: 100rpx;">
    <input class="input" type="text" placeholder="评价下该同学" bindinput="handleInput" style="width: 750rpx; height: 70rpx;"/>
    <button class="e0" bind:tap="AddScore" style="width: 650rpx; height: 100rpx;">评价</button>
    <!-- <button hidden="{{PickOver}}class="e1" bind:tap="OnValue">点击评价</button> -->
  </view>

</view>