vue-router

<!DOCTYPE html>
<html>
<head>
    <title>vue router</title>
    <meta charset="utf-8">
</head>
<body>
    <div id='app'>
        <h1>Hello App</h1>
        <p>
            <!--显示连接的标题-->
            <router-link to="/foo">Go to Foo</router-link>
            <router-link to="/bar">Go to Bar</router-link>
            <router-link to="/user/admin">Go to User-id</router-link>
            <router-link to="/home">Go to Home</router-link>
            <button @click='jump2Home'>跳转到</button>
        </p>
        <router-view></router-view>
    </div>

    <template id='home'>
        <div>
            <h2>首页</h2>
            <router-link to="/home/login">登录</router-link>
            <router-link to="/home/reg">注册</router-link>
            <router-view></router-view>
        </div>
    </template>

    <template id='login'>
        <div>登陆界面</div>
    </template>

    <template id='reg'>
        <div>注册界面</div>
    </template>

    <script src="https://unpkg.com/vue/dist/vue.js"></script>
    <script src="https://unpkg.com/vue-router/dist/vue-router.js"></script>

    <script type="text/javascript">
        const Home = {template:"#home"};
        const Login = {template:"#login"};
        const Reg = {template:"#reg"};
        const Foo = {
            template:"<div>foo</div>"
        }
        const Bar = {
            template:"<div>bar</div>"   
        }
        const User = {
            template:"<div>User {{$route.params.id}}</div>",//显示路由本身
            
        }
        const routes = [
            {path:"/",redirect:"/foo"},//设置默认值,初始页面显示“/foo”路径的内容
            {path:"/foo",component:Foo},//“/foo”下的内容为组件Foo
            {path:"/bar",component:Bar},
            {name:'user',path:"/user/:id",component:User},
            {
                name:'home',
                path:"/home",
                component:Home,
                children:[
                    {path:"/home/login",component:Login},
                    {path:"/home/reg",component:Reg}
                ]
            }
        ]
        const router = new VueRouter({
            routes
        })
        //const可以理解为都为组件/路由
        var app = new Vue({
            el:"#app",
            watch:{
                '$route'(to,from){
                    console.info(to);
                    console.info(from)
                }
            },
            methods:{
                jump2Home(){
                    //push，将当前页面入栈，按后退键可以返回到前一个页面
                    //this.$router.push({name:"home"}) 用name确定跳转页面
                    //this.$router.push({path:"/home/login"}) //用路径确定跳转页面
                    //this.$router.push({name:"user",params:{id:'aaabbb'}})//跳转到user页面，并将id设为aaabbb

                    //replace
                    this.$router.replace({name:"user",params:{id:'aaabbb'}})

                    //go的参数为-1时，可以回到上一个页面，参数为1时可以到下一个页面
                    //this.$router.go(-1)
                }
            },
            router//id为‘app’的区块有路由router

        })
    </script>
    
</body>
</html>
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