ssj_curator/pages/student_select_class/student_select_class.wxml

<import src="../../templates/nodata/nodata.wxml" />
<view class='container'>
  <view class='wrapper'>
    <view class='li-content li-order'>
        <scroll-view scroll-y style="height:{{scrollHeight_}};overflow: scroll;" scroll-into-view="{{toView}}" enable-back-to-top bindscroll="viewScroll" scroll-with-animation scroll-top="{{scrollTop}}" wx:if='{{list.length>0}}' class='li-order'>
          <view wx:for='{{list}}' wx:key='index' wx:if='{{list.length>0}}'>
                <view class="list-letter" id="{{item.title}}">{{item.title}}</view>
                <view class='li-content-items li-flex' wx:for="{{item.items}}" wx:for-item="val" wx:for-index="key" wx:key='key'>
                    <image src='{{val.isCheck=="active"?"../../assets/xuan_zhong.png":"../../assets/gou.png"}}' class='li-content-items-right-img li-margin' bindtap='slectClass' data-id='{{classId}}' data-idx='{{index}}' data-key='{{key}}'></image>
                    <view>
                      <image src='../../assets/class_one.png' class='li-content-items-img'></image>
                      <view class='li-content-items-class'>
                        <view class='li-content-items-class-num'>{{val.className}}</view>
                        <view>
                          <text>学生：{{val.studentSum}}人</text>
                          <text class='li-content-items-class'>教师：{{val.teacherSum}}人</text>
                        </view>
                      </view>
                      
                    </view>
                </view>
          </view>
        </scroll-view>
        <view class="list-shortcut">
              <block wx:for="{{list}}" wx:key="index">
                <text class="list-shortcut-num {{currentIndex===index?'list-current':''}}" data-id="{{item.title}}" data-idx="{{index}}" bindtap='scrollToview'>{{item.title}}</text>
              </block>
        </view>
      </view>
      <view class='li-class-grade'>
            <view bindtap='cancel'>取消</view>
            <view class='li-class-grade-btn' bindtap='sureConfirmTeacherClass'>确定</view>
      </view> 
      <template is='nodata' wx:if='{{list.length==0}}' data='{{...nodata.nodataObj}}'></template>
  </view>
</view>