nutui/miniprogram_dev/components/packages/popup/index.wxml

<wxs src="./index.wxs" module="computed" />

<nut-overlay
  show="{{ overlay && show }}"
  zIndex="{{zIndex}}"
  duration="{{duration}}"
  overlay-style="{{overlayStyle}}"
  bind:click="onClickOverlay"
  />

<nut-transition 
  name="fade" 
  show='{{ show }}' 
  custom-class="nut-overlay custom-class" 
  custom-style='z-index:{{zIndex}};{{overlayStyle}}'   
  bind:tap='onClick'
  duration='{{duration}}'> 
    <view wx:if="{{show}}" class="{{computed.classes({position,popClass,round})}}" style="z-index:{{zIndex}};transitionDuration:{{duration}}s;{{popStyle}}" >
        
        <slot></slot>
        <view
          wx:if="{{show}}"
          bindtap="onClickCloseIcon"
          class="nut-popup__close-icon"
        >
          <!-- <nut-icon name='close'></nut-icon> -->
        </view>
      </view>

</nut-transition>