update: 面包屑只有一级的时候不显示

src/components/app-breadcrumb/app-breadcrumb.scss

@@ -26,3 +26,7 @@
     color: var(--ey-color-black);
   }
 }
+
+.app-breadcrumb.only-root{
+  display: none;
+}
\ No newline at end of file

src/components/app-breadcrumb/app-breadcrumb.vue

 <template>
-    <el-breadcrumb class="app-breadcrumb"  :separator="separator">
+    <el-breadcrumb :class="['app-breadcrumb', breadcrumbs.length === 1 ? 'only-root' : '']"  :separator="separator">
     <transition-group name="breadcrumb">
       <template v-if="Object.is(this.navModel,'route')">
         <el-breadcrumb-item v-for="(item, index) in breadcrumbs"  :key="item.id">