navSub.vue

<style lang="less" scoped>
    .tab-box{
        background-color: #ffffff;border-bottom: #aaa 1px solid; line-height: 34px;font-size:16px;
        height: 36px; padding: 0 20px;
        >div{ float: left; height: 36px; padding: 2px 20px 0 20px; cursor: pointer;}
        .active{border-bottom: 3px solid #2d8cf0; color: #2d8cf0;}
    }
</style>
<template>
    <div class="tab-box" v-if="list.length>0">
        <div v-for="(item,index) in list" @click="onClick(index)" :class="navIndex == index ?'active':''">{{item.title}}
        </div>
    </div>
</template>
<script type="text/javascript">
import navConfig from '../config/navConfig.js';
export default {
    props: {
        activeName: {
            type: String,
            default: ''
        }
    },
    data() {
        return {
            navIndex: 0,
            navConfig,
            list: []
        };
    },
    components: {},
    methods: {
        setNav(name) {
            var array = name.split('-');
            try {
                let list = this.navConfig[array[0]].children[array[1]].children;
                this.list = list || [];
            } catch (ex) {
                this.list = [];
            }
        },
        onClick(index) {
            this.navIndex = index;
            this.$router.push({ path: this.list[this.navIndex].to });
        }
    },
    watch: {
        activeName(val, oldname) {
            this.setNav(val);
        }
    },
    created() {
        this.setNav(this.activeName);
    },
    mounted() {},
    //计算属性
    computed: {}
};
</script>