这一部分在开发工具种无法调试，后续数据打印无法查看，很难进行。

<form class="formName" bindsubmit="_handleSubmit">

  <view class="content">

    <view class="header">

      <button class="avatar-wrapper" open-type="chooseAvatar" bind:chooseavatar="_handleOnChooseAvatar">

        <image class="avatar" mode="aspectFill" src="{{avatarUrl}}"></image>

      </button> 

    </view>

    <view class="nickName">

      <input type="nickname" name="userNickName" class="weui-input" placeholder="请输入昵称"/>

    </view>

    <view class="submit">

      <button class="submitBtn" type="primary" form-type="submit">提交</button>

    </view>

  </view>

</form>