vue面包屑组件的封装方法

<template>
  <div class='xtx-bread'>
    <div class="xtx-bread-item">
      <RouterLink to="/">首页</RouterLink>
    </div>
    <i class="iconfont icon-angle-right"></i>
    <div class="xtx-bread-item">
      <RouterLink to="/cateGory/10000">二级级导航</RouterLink>
    </div>
    <i class="iconfont icon-angle-right"></i>
    <div class="xtx-bread-item">
      <span>三级导航</span>
    </div>
  </div>
</template>

<style scoped lang='less'>
.xtx-bread{
  display: flex;
  padding: 25px 10px;
  &-item {
    a {
      color: #666;
      transition: all .4s;
      &:hover {
        color: @xtxColor;
      }
    }
  }
  i {
    font-size: 12px;
    margin-left: 5px;
    margin-right: 5px;
    line-height: 22px;
  }
}
</style>

<div class='xtx-bread'>
     <div class="xtx-bread-item">
       <RouterLink to="/">首页</RouterLink>
     </div>
     <i class="iconfont icon-angle-right"></i>
    <template v-if="parentName">
     <div class="xtx-bread-item"  v-if="parentName">
       <RouterLink  v-if="parentPath" to="/category/10000">{{parentName}}</RouterLink>
       <span v-else>{{parentName}}</span>
     </div>
    </template>
    <i v-if="parentName" class="iconfont icon-angle-right"></i>
    <div class="xtx-bread-item">
      <span> <slot/> </span>
    </div>
  </div>
//用props接收数据
props: {
    parentName: {
      type: String,
      default: ''
    },
    parentPath: {
      type: String,
      default: ''
    }
  }

import Bread from './Bread'
export default {
  install (app) {
    // Vue2中，参数是Vue构造函数
    // vue3中，参数是根组件的实例对象

    // 配置一个全局组件
    app.component(Bread.name, Bread)
  }
}

<Bread parentPath="/category/1005000" parentName="服饰">飞织系列</Bread>
<Bread parentName="服饰">飞织系列</Bread>  //parentPath去掉后不能实现跳转

<el-breadcrumb separator="/">
  <el-breadcrumb-item :to="{ path: '/' }">首页</el-breadcrumb-item>
  <el-breadcrumb-item><a href="/" rel="external nofollow" >活动管理</a></el-breadcrumb-item>
  <el-breadcrumb-item>活动列表</el-breadcrumb-item>
  <el-breadcrumb-item>活动详情</el-breadcrumb-item>
</el-breadcrumb>

<template>
  <div class="xtx-bread-item">
    <RouterLink v-if="to" :to="to"><slot /></RouterLink>
    <span v-else><slot /></span>
    <i class="iconfont icon-angle-right"></i>
  </div>
</template>
<script>
export default {
  name: 'XtxBreadItem',
  props: {
    to: {
      type: [String, Object] //to的值即可以是字符串，也可以是对象
    }
  }
}
</script>
//使用时
<bread-item to="/xxx/id"></bread-item>
<bread-item :to='{path:"/xxx/id"}'></bread-item>

<template>
  <div class='xtx-bread'>
    <slot />
  </div>
</template>

<script>
export default {
  name: 'XtxBread'
}
</script>

<style scoped lang='less'>
.xtx-bread {
  display: flex;
  padding: 25px 10px;
  :deep(&-item) {
    a {
      color: #666;
      transition: all 0.4s;
      &:hover {
        color: @xtxColor;
      }
    }
  }
  :deep(i) {
    font-size: 12px;
    margin-left: 5px;
    margin-right: 5px;
    line-height: 22px;
  }
}
</style>

import BreadItem  from './BreadItem'
import Bread  from './Bread'
export default {
  install (app) {
    // Vue2中，参数是Vue构造函数
    // Vue3中，参数是根组件的实例对象

    // 配置一个全局组件
    app.component(Bread.name,Bread)
    app.component(BreadItem.name, BreadItem)
  }
}

// 面包屑
<Bread>
    <BreadItem to="/">首页</XtxBreadItem>
    <BreadItem to="/category/1005000">服饰</XtxBreadItem>
    <BreadItem >飞织系列</XtxBreadItem>
</XtxBread>