fix：修复加载显示

src/views/perfManage/kpiOverView/index.vue

@@ -31,7 +31,7 @@ interface ChartDataItem {
   date: string; // 将存储完整的时间字符串包含时分秒
   [kpiId: string]: string | number; // 动态指标
 }
-
+const tableLoading = ref(false);
 //网元类型定义
 const ALL_NE_TYPES = ['AMF','SMF','UPF','MME','IMS','SMSC'] as const;
 type NeType= typeof ALL_NE_TYPES[number];
@@ -107,6 +107,7 @@ const fnRealTimeSwitch = (bool: boolean) => {
     }
     chartData.value = [];
 
+    tableLoading.value =true;
     const options: OptionsType = {
       url: '/ws',
       params: {
@@ -119,6 +120,7 @@ const fnRealTimeSwitch = (bool: boolean) => {
   } else if (ws.value) {
     ws.value.close(); //断开链接
     ws.value = null; //清空链接
+    tableLoading.value = false;
   }
 };
 
@@ -142,6 +144,9 @@ const handleWebSocketMessage = (kpiEvent:any)=>{
 
   // 更新数据
   updateChartData(newData);
+  if(tableLoading.value){
+    tableLoading.value=false;
+  }
 };
 //成功回调
 const wsMessage = (res:Record<string,any>)=>{
@@ -606,6 +611,7 @@ const updateChartLegendSelect = (selectedKpiId?: string) => {
           :pagination="false"
           :scroll="{ y: 250 }"
           size="small"
+          :loading="tableLoading"
           :custom-row="(record) => ({
             onClick: () => handleRowClick(record),
             class: record.kpiId === selectedRow ? 'selected-row' : ''