<van-field
  label="交易密码"
  password
  model:value="{{ pwd }}"
  placeholder="请输入交易密码"
  clearable
/>
<van-field
  label="再次输入"
  password
  model:value="{{ pwd2 }}"
  placeholder="请再次输入交易密码"
  clearable
/>
<van-cell icon="info-o" title="温馨提示" label="为了保障您的资金安全，余额支付、优惠买单、申请提现的时候可能会需要交易密码" />
<view class="block-btn btn">
  <van-button type="primary" block bind:click="submit">设置交易密码</van-button>
</view>
