如图，已经做到用wx:for在卡片上显示某一订单的部分信息，我希望可以通过点击红框内按钮的方式显示该订单详细信息，但是目前还无法显示。使用的是vant。

wxml代码：

<van-tabs active="{{ active }}" bind:change="onChange" animated>

  <van-tab title="未送达">

  <scroll-view scroll-y="true" style="height: 900rpx; margin-top: 45rpx;">

    <view class="order_box" style="height: 400px;opacity: 0.85;margin-top:5%;margin-left:16%;margin-bottom: 5%;"

     wx:for="{{orderList}}" wx:key="oid" wx:if="{{item.ispay===1}}">

     <van-card

    desc="订单号：{{item.oid}}"

    title="{{item.oname}}"

    num="{{item.count}}"

    price="{{item.money}}"

    desc-class="cardDesc"

    >

      <view slot="footer">

        <button class="box_btn" bindtap="showDetailDialog" size="mini">详情</button>

        <button class="box_btn" size="mini" bindtap="orderReminder">催单</button>

      </view>

  </van-card>

</view>

</scroll-view>

  </van-tab>

......

</van-tabs>

下面是这个弹出框的代码：

<van-dialog

  use-slot

  title="订单详情"

  show="{{ showDetail }}"

  >

  <van-cell-group>

      <van-cell title="订单号" value="{{item.oid}}"/>

      <van-cell title="目的地址" value="{{item.daddress}}"></van-cell>

      <van-cell title="货物名" value="{{item.oname}}"></van-cell>

      <van-cell title="货物重量" value="{{item.weight}}"></van-cell>

      <van-cell title="货物数量" value="{{item.count}}"></van-cell>

      <van-cell title="货物类别" value="{{item.cclass}}"></van-cell>

      <van-cell title="加急" value="{{item.ishurry}}" title-width="300rpx">

        <van-radio-group

        value="{{ radio }}"

        bind:change="onChange"

        direction="horizontal"

        disabled

      >

          <van-radio name="1" shape="square" label-position="left">是</van-radio>

          <van-radio name="0" shape="square" label-position="left">否</van-radio>

        </van-radio-group>

      </van-cell>

      <van-cell title="易碎" value="{{item.isfragile}}" title-width="300rpx">

        <van-radio-group

        value="{{ radio }}"

        bind:change="onChange"

        direction="horizontal"

        disabled

      >

          <van-radio name="1" shape="square" label-position="left">是</van-radio>

          <van-radio name="0" shape="square" label-position="left">否</van-radio>

        </van-radio-group>

      </van-cell>

      <van-cell title="支付金额" value="{{item.money}}"></van-cell>

      <van-cell title="备注" value="{{item.tips}}"></van-cell>

      <van-cell title="创建日期" value="{{item.otime}}" />

  </van-cell-group>

</van-dialog>

没有前端经验，拜托各位了......