优化

src/views/nav.vue

@@ -70,7 +70,7 @@
         <!-- 顶部 -->
         <el-header class="header">
           <el-breadcrumb :separator-icon="ArrowRight">
-            <el-breadcrumb-item :to="{ path: '/nav/Home' }">首页</el-breadcrumb-item>
+            <el-breadcrumb-item :to="{ path: '/nav/Home' }" @click="onBreadcrumbClick('/nav/Home')">首页</el-breadcrumb-item>
             <el-breadcrumb-item
               v-for="(item, index) in breadcrumbList"
               :key="index"
@@ -129,7 +129,6 @@ function convertPathsToMenuItems(paths) {
 }
 //面包屑
 function handleSelect(index, indexPath) {
-  console.log("select", convertPathsToMenuItems(indexPath));
   breadcrumbList.value = convertPathsToMenuItems(indexPath);
 }
 //面包屑地址判断
@@ -140,6 +139,17 @@ function handleurl(indexPath) {
     return indexPath;
   }
 }
+//处理面包屑点击事件
+function getPreviousObjects(arr, targetPath) {
+  // 找到匹配目标路径的第一个元素的索引
+  const index = arr.findIndex(item => item.path === targetPath);
+  
+  // 如果找到匹配项，则返回从开始到该索引的子数组（包含自身）
+  return index !== -1 ? arr.slice(0, index + 1) : [];
+}
+function onBreadcrumbClick(path) {
+  breadcrumbList.value = getPreviousObjects(breadcrumbList.value, path)
+}
 //菜单展开
 function toggleCollapse() {
   asideWidth.value = isCollapse.value ? "10vw" : "4vw";