dghd_miniapp/pages/submitPhone/index.wxml

<view class="container">
  <!-- <view> 手机号码：</view>
  <input type="text" name="name" placeholder="请输入手机号码"/>
  <button bindtap="toSubmit">提交</button> -->
  <form bindsubmit="formSubmit">
    <input type="text" name="phoneNumber" placeholder="请输入手机号码" />
    <button formType="submit">提交</button>
  </form>
</view>