Fix：2983 【商城小程序】被下架的商品在购物车中消失（改为前端数据保留，点击时提醒商品已下架或被删除）

pages/cart.vue

@@ -179,7 +179,7 @@
                   class="sku ai-center"
                   @click="changeGoodAttrHandle(good)"
                 >
-                  规格：{{ good['productInfo']['attrInfo']['sku'] }}
+                  规格：{{ good['productInfo']['attrInfo']['sku'] ? good['productInfo']['attrInfo']['sku'] : '' }}
                 </view>
                 <!-- <view class="v12-mt-1 v12-align-center">
                   <view class="v12-primary-text v12-primary-border v12-radius-8 v12-font-24 v12-px-1">
@@ -192,6 +192,7 @@
                 <view
                   class="flex jc-between ai-center"
                   style="width: 100%;margin-top: 4rpx;"
+                  v-if="good['truePrice'] !== null"
                 >
                   <view
                     class="v12-font-bold v12-primary-text"
@@ -225,6 +226,7 @@
                     </template>
                   </u-number-box>
                 </view>
+                <view v-else class="v12-secondary-dark-text v12-font-24" style="padding: 0 10rpx">商品已下架</view>
               </view>
             </view>
           </view>