微信小程序--人脸识别以及保存到数据库

<view class="weui-cell weui-cell_input weui-cell_vcode">
             <view class="weui-cell__bd">
              <view class="weui-uploader">
                <view class="weui-uploader__hd">
                  <view class="weui-uploader__title">个人照片</view>
                  <view class="weui-uploader__info">0/1</view>
                </view>
                <view class="weui-uploader__bd">
                  <view class="weui-uploader__files">
                    <block wx:for="{{imageList}}" wx:for-item="image" wx:key="image">
                      <view class="weui-uploader__file">
                        <image class="weui-uploader__img" src="{{image}}" data-src="{{image}}" bindtap="previewImage"></image>
                      </view>
                    </block>
                  </view>
                  <view class="weui-uploader__input-box">
                    <view class="weui-uploader__input" bindtap="chooseImage"></view>
                  </view>
                </view>
            </view>
          </view>
          </view>

  <view class="weui-btn-area">
            <button class="weui-btn" type="primary"  form-type='submit' bindtap='submit'>确定</button>
             <button class="weui-btn" type="primary" plain="true" bindtap='exit'>取消</button><view class="weui-cell weui-cell_input weui-cel