feat: 增加空数据提示

global.types/components.d.ts

@@ -26,6 +26,7 @@ declare module 'vue' {
     ElDialog: typeof import('element-plus/es')['ElDialog']
     ElDivider: typeof import('element-plus/es')['ElDivider']
     ElDrawer: typeof import('element-plus/es')['ElDrawer']
+    ElEmpty: typeof import('element-plus/es')['ElEmpty']
     ElHeader: typeof import('element-plus/es')['ElHeader']
     ElInput: typeof import('element-plus/es')['ElInput']
     ElMenu: typeof import('element-plus/es')['ElMenu']

src/views/stationData/components/PointGroupTree.vue

@@ -14,7 +14,10 @@
     </div>
     <el-divider direction="vertical" class="h-full" />
     <div class="w-340" v-loading="loadingPoints" element-loading-text="数据加载中...">
-      <el-scrollbar class="scroll">
+      <template v-if="!devicePoints.length">
+        <el-empty></el-empty>
+      </template>
+      <el-scrollbar class="scroll" v-else>
         <el-checkbox-group v-model="checkPointList" class="point-checks" @change="changePoints">
           <template v-for="(item, index) in devicePoints" :key="index">
             <el-checkbox :label="item.label" :value="item" />