PianoTime/wechat/pages/rate/rate.wxml

<form bindsubmit="formSubmit">
  <view wx:for="{{ teachers }}" wx:for-item="out_item">
    <zan-panel title='课程名称：{{ course_name }}\n讲师姓名：{{ out_item.name }}'>
      <view>
        <view wx:for="{{ titles }}">
          <zan-cell title="{{ item.name }}">
            <zan-field placeholder="（满分10.0）" type="digit" name="data[{{ out_item.id }}][{{ item.id }}]">
            </zan-field>
          </zan-cell>
        </view>
      </view>
    </zan-panel>
  </view>
  <zan-button-group>
    <!-- <zan-button type="primary" bindtap="onSubmit">提交</zan-button> -->
    <button formType="submit" type='primary' class='submit-btn'>提交</button>
  </zan-button-group>
</form>