message/pages/add/add.wxml

<!--add.wxml-->
<import src="../common/footer.wxml" />
<form bindsubmit="formSubmit">
  <view class="page">
    <template is="head" />
    <view class="page-body">
      <view class="page-section">
        <view class="page-body-info">
          <block wx:if="{{imageSrc}}">
            <view bindtap="chooseImage" style="display:inline-block;width:100%;">
              <image src="{{imageSrc}}" class="image" mode="aspectFit"></image>
            </view>
          </block>
          <block wx:else>
            <view class="image-plus image-plus-nb" bindtap="chooseImage">
              <view class="image-plus-horizontal"></view>
              <view class="image-plus-vertical"></view>
            </view>
            <view class="image-plus-text">选择图片</view>
          </block>
        </view>
      </view>
      <view class="page-section">
        <view class="page-section-title">内容</view>
        <view class="textarea-wrp">
          <textarea name="text" auto-height placeholder="请输入内容" />
        </view>
      </view>
      <view class="page-section">
        <view class="button-wrapper">
          <button type="primary" loading="{{busy ? true : false}}" disabled="{{busy ? true : false}}" formType="submit">提交</button>
        </view>
      </view>
    </view>
    <template is="foot" />
  </view>
</form>