【优化】售后提醒调整展示模式，将toast调整为可关闭的alert模式

CoreCms.Net.Uni-App/CoreShop/pages/member/afterSales/submit/submit.vue

@@ -11,12 +11,16 @@
             </view>
         </u-navbar>
         <view class="content">
+
+            <view class="coreshop-margin-10" v-if="showAlert">
+                <u-alert :title="alertTitle" type="warning" effect="dark" :closable="alertClosable" :description="alertDescription"></u-alert>
+            </view>
+
             <view class="coreshop-solid-bottom coreshop-bg-white coreshop-font-lg coreshop-padding-15">
                 <uni-text class="coreshop-text-black">
                     <span>请选择退货商品和数量</span>
                 </uni-text>
             </view>
-
             <form @submit="submit">
                 <view class="coreshop-tabbar-height">
                     <view class="img-list">
@@ -185,7 +189,11 @@
                 submitStatus: false,
                 checkedItems: [],//当前选中的商品
                 isFlag: true,
-                costFreight: 0//运费
+                costFreight: 0,//运费
+                showAlert: false,
+                alertTitle: '提醒',
+                alertDescription: '',
+                alertClosable: true
             }
         },
         computed: {
@@ -402,7 +410,9 @@
                             }
                         })
                     } else {
-                        _that.$u.toast(res.msg);
+                        _that.showAlert = true;
+                        _that.alertDescription = res.msg;
+                        //_that.$u.toast(res.msg);
                     }
                 });
             },