haowanShow/miniprogram/dist/image-picker/index.wxml

<!-- image-picker.wxml -->
<l-grid row-num="{{ size }}" l-class="l-class">
  <l-grid-item
    wx:for="{{ urls }}"
    wx:key="{{ index }}"
    key="{{ index }}"
    slot="{{ index }}">
    <view class="item l-item-class" catchtap="onPreviewTap" data-index="{{ index }}">
      <view class="close" data-index="{{ index }}" catchtap="onDelTap">
        <l-icon name="close" color="#fff" size="22" l-class-self="close-icon"/>
      </view>
      <image class="{{size == 3? 'img': 'min-img'}}" mode="{{ mode }}" src="{{ item }}" />
    </view>
  </l-grid-item>
  <!-- add 按钮 -->
  <l-grid-item wx:if="{{ showBtn }}">
    <!-- 自定义图片选择按钮 -->
    <view class="item l-item-class {{size == 3? 'img': 'min-img'}}" catchtap="onAddTap" wx:if="{{ custom }}">
      <slot></slot>
    </view>
    <view class="item l-item-class {{size == 3? 'img': 'min-img'}}" catchtap="onAddTap" wx:else>
      <image class="add-icon" src="./image/add.png" />
    </view>
  </l-grid-item>
</l-grid>