answer-mini/wechat-app/static/vant/popup/index.wxml

<wxs src="../wxs/utils.wxs" module="utils" />

<van-overlay
  wx:if="{{ overlay }}"
  show="{{ show }}"
  z-index="{{ zIndex }}"
  custom-style="{{ overlayStyle }}"
  duration="{{ duration }}"
  bind:click="onClickOverlay"
/>
<view
  wx:if="{{ inited }}"
  class="custom-class {{ classes }} {{ utils.bem('popup', [position, { round, safe: safeAreaInsetBottom, safeTop: safeAreaInsetTop }]) }}"
  style="z-index: {{ zIndex }}; -webkit-transition-duration:{{ currentDuration }}ms; transition-duration:{{ currentDuration }}ms; {{ display ? '' : 'display: none;' }};{{ customStyle }}"
  bind:transitionend="onTransitionEnd"
>
  <slot />
  <van-icon
    wx:if="{{ closeable }}"
    name="{{ closeIcon }}"
    class="close-icon-class van-popup__close-icon van-popup__close-icon--{{ closeIconPosition }}"
    bind:tap="onClickCloseIcon"
  />
</view>