详解基于iview-ui的导航栏路径（面包屑）配置

//router.js
let routes = [
  {
    path: '/',
    redirect: '/admin',
  },
  {
    path: '/login',
    name: 'login',
    meta: {title: '登录'},
    component: () => import('./components/login.vue')
  },
  {
    path: '/admin',
    name: 'admin',
    meta: {title: '主页'},
    component: () => import('./components/admin.vue'),
    children: [
      {
        path: 'operation',
        name: 'operation',
        meta: {title: '运营管理'},
        component: () => import('./components/admin/operation.vue')
      },
      {
        path: 'order',
        name: 'order',
        meta: {title: '订单中心'},
        redirect: 'order/index',
        component: () => import('./components/admin/order.vue'),
        children: [
          {
            path: 'index',
            name: 'index',
            meta: {title: ''},
            component: () => import('./components/admin/ordercenter.vue')
          },
          {
            path: 'detail',
            name: 'detail',
            meta: {title: '订单详情'},
            component: () => import('./components/admin/orderdetail.vue')
          },
        ]
      },
    ]
  },
]

export default routes

 /*面包屑路径处理*/
 eve_breadcrumbItem_change(){
        var list = this.$route.fullPath.split('/')//list[0]:是空格
        this.BreadcrumbItem = []
        function fn(obj, arr, index,self) {
          if (obj.hasOwnProperty('children')&&obj['children'].length>0) {
            for (let one of obj.children) {
              if (one.name != 'index' && one.name == arr[index]) {
                self.BreadcrumbItem.push({'title': one.meta.title, 'path': list.slice(0,index+1).join('/')})
                return one.hasOwnProperty('children')&&one['children'].length>0?fn(one,arr,index+1,self):false
              }
            }
          }
        }
        for(let one of this.$router.options.routes){
          if(one.hasOwnProperty('name')&&one.name == list[1]){
            this.BreadcrumbItem.push({'title': one.meta.title, 'path': one.path})
            fn(one,list,2,this)
          }
        }
      }

watch: {
  '$route'(to, from) {
    this.eve_breadcrumbItem_change()
  }
},
...
mounted() {
  this.eve_breadcrumbItem_change()
},