优先展示商品规格图片，没有则显示返回的封面图片

pages/index/cart.vue

@@ -27,7 +27,7 @@
 							<radio :checked="state.selectedIds.includes(item.id)" color="var(--ui-BG-Main)"
 								style="transform: scale(0.8)" @tap.stop="onSelectSingle(item.id)" />
 						</label>
-						<s-goods-item :title="item.spu.name" :img="item.spu.picUrl || item.goods.image"
+						<s-goods-item :title="item.spu.name" :img="item.sku?.picUrl || item.spu?.picUrl || item.goods?.image || ''"
 							:price="item.sku?.price"
 							:skuText="item.sku?.properties.length>1? item.sku?.properties.reduce((items2,items)=>items2.valueName+' '+items.valueName):item.sku?.properties[0].valueName"
 							priceColor="#FF3000" :titleWidth="400">