Vue 解决多级动态面包屑导航的问题

{
  path: '/project/process/:id',
  name: 'process',
  ponent: () => import('@/views/project/process/main.vue'),
  meta: [
    { name: '项目管理列表' },
    { name: '项目列表', url: '/project/list' },
    { name: '里程碑' },
  ],
},

<el-breadcrumb separator-class="el-icon-arrow-right">
 <el-breadcrumb-item v-for="(item, index) in $route.meta" :key="index">
    <router-link v-if="item.url" :to="item.url">{{item.name}}</router-link>
    <a v-else>
      {{item.name}}
    </a>
  </el-breadcrumb-item>
</el-breadcrumb>

{
  path: '/project/process/:id',
  name: 'process',
  ponent: () => import('@/views/project/process/main.vue'),
  meta: [‘项目管理', '项目进度', '里程碑'],
},

<el-breadcrumb separator="/">
  <el-breadcrumb-item :to="{path: '/home'}">首页</el-breadcrumb-item>
  <el-breadcrumb-item v-for="(item, index) in $route.meta" :key="index">
  {{item}}
  </el-breadcrumb-item>
</el-breadcrumb>

...
{
  path: '/type',
  name: 'type',
  ponent: () => import('@/views/type/main.vue'),
  meta: [
    { name: '项目分类' },
  ],
},
{
  path: '/type/list/:id',
  name: 'list',
  ponent: () => import('@/views/list/type/main.vue'),
  meta: [
    { name: '项目分类', url: '/list' },
    { name: '项目列表' },
  ],
},
{
  path: '/list/detail',
  name: 'detail',
  ponent: () => import('@/views/type/list/detail/index.vue'),
  meta: [
    { name: '项目分类', url: '/list' },
    { name: '项目列表', url: '/type/list' },
    { name: '详情' },
  ],
},
...

beforeRouteEnter(to, from, next) {
  const meta = to.meta;
  for (let i = 0; i < meta.length; i++) {
    if (meta[i].name === '项目列表') {
      meta[i].url = `/type/list/${from.params.id}`;
    }
  }
  next();
  },