improvement: 活动图片地址修改

src/pages/index.wpy

@@ -221,7 +221,7 @@
     <!--活动图片弹窗-->
     <van-popup show="{{ avtivityModal }}" bind:close="ModalClose" round closeable>
       <view class="img-wrapper">
-        <van-image use-loading-slot src="{{ mainInfo.activity && mainInfo.activity.link_url }}" width="400rpx" fit="widthFix" radius="10rpx">
+        <van-image use-loading-slot src="{{ mainInfo.activity && mainInfo.activity.linkUrl }}" width="400rpx" fit="widthFix" radius="10rpx">
           <van-loading slot="loading" type="spinner" size="30" vertical />
         </van-image>
       </view>