shenweishi/node_modules/@vant/weapp/lib/notice-bar/index.wxml

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

<view
  wx:if="{{ show }}"
  class="custom-class {{ utils.bem('notice-bar', { withicon: mode, wrapable }) }}"
  style="{{ computed.rootStyle({ color, backgroundColor, background }) }}"
  bind:tap="onClick"
>
  <van-icon
    wx:if="{{ leftIcon }}"
    size="16px"
    name="{{ leftIcon }}"
    class="van-notice-bar__left-icon"
  />
  <slot wx:else name="left-icon" />

  <view class="van-notice-bar__wrap">
    <view class="van-notice-bar__content {{ scrollable === false && !wrapable ? 'van-ellipsis' : '' }}" animation="{{ animationData }}">
      {{ text }}
      <slot wx:if="{{ !text }}"></slot>
    </view>
  </view>

  <van-icon
    wx:if="{{ mode === 'closeable' }}"
    class="van-notice-bar__right-icon"
    name="cross"
    catch:tap="onClickIcon"
  />
  <navigator
    wx:elif="{{ mode === 'link' }}"
    url="{{ url }}"
    open-type="{{ openType }}"
  >
    <van-icon class="van-notice-bar__right-icon" name="arrow" />
  </navigator>
  <slot wx:else name="right-icon" />
</view>