057——VUE中vue-router之路由参数默认值的设置

<!DOCTYPE html>

<html lang="en">

<head>

    <meta charset="UTF-8">

    <title>vue-router之路由参数默认值的设置</title>

    <script src="vue.js"></script>

    <script src="vue-router.js"></script>

</head>

<body>

<div id="demo">

    <router-link to="/content">链接</router-link>

    <router-view></router-view>

</div>

<script type="text/x-template" id="content">

    <div>

        id:{{id}}

    </div>

</script>

<script>

    const content = {

        template: "#content",

        data() {

            return {

                id:0

            }

        },

        mounted() {

            this.id = this.$route.params.id;

            if (!this.id) {

                this.id = 1;

            }

        }

    }

    let routes=[

        {path:'/content/:id?',component:content}

    ]

    let router=new VueRouter({routes});

    new Vue({

        el:"#demo",

        router

    });

</script>

</body>

</html>

巴特西

057——VUE中vue-router之路由参数默认值的设置

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