作业-广告筛选 

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <script src="https://cdn.bootcss.com/jquery/3.4.1/jquery.min.js"></script>
    <script src="js/vue.js"></script>

    <script src="https://cdn.bootcss.com/twitter-bootstrap/3.3.7/js/bootstrap.min.js"></script>
    <link href="https://cdn.bootcss.com/twitter-bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">
    <style>
        .box {
            width: 200px;
            border-radius: 10px;
            overflow: hidden;
            background-color: #eee;
            float: left;
            margin: 10px;
        }

        .box h2 {
            text-align: center;
            font-weight: normal;
            font-size: 20px;
        }

        #select:after {
            content: '';
            display: block;
            clear: both;
        }

    </style>
</head>
<body>
<div id="app" style="text-align: center;font-size: 48px">
    <h3 style="display: inline" @click="selectTitle('tv')">电视</h3>
    <h3 style="display: inline" @click="selectTitle('phone')">手机</h3>
    <local-tag :data_select="data_select"></local-tag>
</div>

<script>
    var img_tag = {
        props: ['info'],
        template: `
            <div class="box">
                <img :src="info.img"  @click="selected" >
                <h2>{{ info.title }}</h2>
            </div>`,
        methods: {
            selected() {
                this.$emit('selected', this.info);
            }
        },
    };
    var localTag = {
        props: ["data_select"],
        data() {
            return {
                selected_info: ""
            };
        },

        template: `
            <div>
            <div id='select' >
                <img_tag v-for="(info,i) in data_select" :info="info" @selected="selected"></img_tag>
            </div>
            <h2>{{ selected_info | f1}}</h2>
            </div>`,
        methods: {
            selected(info) {
                this.selected_info = info
            }
        },
        filters: {
            f1(selected_info) {
                if (selected_info) {
                    return selected_info.title + '被选中';
                } else {
                    return "未选中任何广告"
                }
            }
        },
        components: {
            'img_tag': img_tag
        }
    };
    new Vue({
        el: '#app',
        data: {
            ad_data: {
                tv: [
                    {img: 'img/tv/001.jpg', title: 'tv1'},
                    {img: 'img/tv/002.jpg', title: 'tv2'},
                    {img: 'img/tv/003.jpg', title: 'tv3'},
                    {img: 'img/tv/004.jpg', title: 'tv4'},
                ],
                phone: [
                    {img: 'img/phone/001.jpg', title: 'phone1'},
                    {img: 'img/phone/002.jpg', title: 'phone2'},
                    {img: 'img/phone/003.jpg', title: 'phone3'},
                    {img: 'img/phone/004.jpg', title: 'phone4'},
                ]
            },
            data_select: [
                {img: 'img/tv/001.jpg', title: 'tv1'},
                {img: 'img/tv/002.jpg', title: 'tv2'},
                {img: 'img/tv/003.jpg', title: 'tv3'},
                {img: 'img/tv/004.jpg', title: 'tv4'},
            ]

        },
        components: {
            'local-tag': localTag
        },
        methods: {
            selectTitle(title) {
                this.data_select = this.ad_data[title];
            }
        }
    });
</script>
</body>
</html>
posted @ 2019-12-18 20:51  W文敏W  阅读(95)  评论(0)    收藏  举报