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vue.js实现轮播图

2021-01-29 09:17

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标签：rip   element   tag   strong   dde   name   body   ids   vue   

vue.js实现切换式轮播图

HTML部分

body>
    div id="app">
        div id="banner">
            div id="imglist">
                a href="" v-for="(item,index) in Rot_a" :key="index">img :src="item" alt="">a>
            div>
            ul id="iconlist">
                li v-for="(item,index) in Rot_a" :key="index">li>
            ul>
            div class="ss">
                span @click="ss_a(1)">左span>
                span @click="ss_a(2)">右span>
            div>
        div>
    div>
body>

 

CSS部分

    style>
        * {
            padding: 0px;
            margin: 0px;
            list-style: none;
            text-decoration: none;
        }
        
        #banner {
            position: relative;
            width: 1280px;
            height: 600px;
            overflow: hidden;
            border: 2px solid red;
        }
        
        #imglist {
            width: 1280px;
            height: 600px;
        }
        
        #imglist>a {
            width: 1280px;
            height: 600px;
            display: none;
        }
        
        #imglist>a:nth-child(1) {
            display: block;
        }
        
        #imglist>a img {
            display: block;
            width: 100%;
            height: 100%;
        }
        
        #iconlist {
            position: absolute;
            display: flex;
            justify-content: center;
            align-items: center;
            width: 100%;
            height: 50px;
            bottom: 0px;
            left: 0px;
        }
        
        #iconlist li {
            display: flex;
            justify-content: center;
            align-items: center;
            width: 30px;
            height: 30px;
            background-color: #fff;
            border-radius: 50%;
            margin: 0px 20px;
            cursor: pointer;
        }
        
        #iconlist li:nth-child(1) {
            background-color: red;
        }
        
        .ss {
            position: absolute;
            top: 50%;
            margin-top: -25px;
            width: 100%;
            display: flex;
            flex-flow: row;
            justify-content: space-between;
        }
        
        .ss span {
            width: 50px;
            height: 50px;
            background-color: pink;
        }
    style>

 

JS部分

script>
    new Vue({
        el: ‘#app‘,
        data: function() {
            return {
                Rot_a: [
                    ‘image/01.jpg‘,
                    ‘image/02.jpg‘,
                    ‘image/03.jpg‘,
                    ‘image/04.jpg‘,
                ],
                num: 0,
            };
        },
        mounted() {
            this.aa()
        },
        methods: {
            aa() {
                var div = document.getElementById("banner")
                var icons = document.getElementById("iconlist").getElementsByTagName("li")
                that = this
                    // 设置循环变量
                    // 设置定时器
                var timer = setInterval(run, 1500)
                    // 循环函数
                function run() {
                    that.num = that.num + 1
                    if (that.num >= that.Rot_a.length) {
                        that.num = 0
                    }
                    console.log(that.num);

                    that.controlimg(that.num)
                    that.controlicon(that.num)
                }
                // 鼠标悬停事件
                div.onmouseover = function() {
                        // 停止定时器
                        clearInterval(timer);
                    }
                    // 鼠标移走事件
                div.onmouseout = function() {
                        timer = setInterval(run, 1500)
                    }
                    // 给图标绑定事件
                for (var i = 0; i  icons.length; i++) {
                    (function(i) {
                        icons[i].onmouseover = function() {
                            that.controlimg(i)
                            that.controlicon(i)
                                // 循环改变变量
                            that.num = i
                        }
                    })(i)
                }
            },
            ss_a(id) {
                that = this
                let ids = id
                that = this
                if (ids == 1) {
                    that.num = that.num - 1
                    if (that.num  -1) {
                        that.num = that.Rot_a.length - 1
                    }
                } else {
                    that.num = that.num + 1
                    if (that.num >= that.Rot_a.length) {
                        that.num = 0
                    }
                }
                that.controlimg(that.num)
                that.controlicon(that.num)
            },

            // 定义一个函数 控制图片
            controlimg(n) {
                var imgs = document.getElementById("imglist").getElementsByTagName("a")
                for (var i = 0; i  imgs.length; i++) {
                    imgs[i].style.display = "none"
                }
                // 显示指定图片
                imgs[n].style.display = "block"
            },
            controlicon(n) {
                var icons = document.getElementById("iconlist").getElementsByTagName("li")
                for (var i = 0; i  icons.length; i++) {
                    icons[i].style.backgroundColor = "#fff"
                }
                // 当前的图标变红
                icons[n].style.backgroundColor = "red"
            }
        }
    })
script>

 

全部代码

DOCTYPE html>
html lang="en">

head>
    meta charset="UTF-8">
    meta name="viewport" content="width=device-width, initial-scale=1.0">
    title>轮播图title>
    script src="js/jquery-3.4.1.min.js">script>
    script src="js/vue.js">script>
    style>
        * {
            padding: 0px;
            margin: 0px;
            list-style: none;
            text-decoration: none;
        }
        
        #banner {
            position: relative;
            width: 1280px;
            height: 600px;
            overflow: hidden;
            border: 2px solid red;
        }
        
        #imglist {
            width: 1280px;
            height: 600px;
        }
        
        #imglist>a {
            width: 1280px;
            height: 600px;
            display: none;
        }
        
        #imglist>a:nth-child(1) {
            display: block;
        }
        
        #imglist>a img {
            display: block;
            width: 100%;
            height: 100%;
        }
        
        #iconlist {
            position: absolute;
            display: flex;
            justify-content: center;
            align-items: center;
            width: 100%;
            height: 50px;
            bottom: 0px;
            left: 0px;
        }
        
        #iconlist li {
            display: flex;
            justify-content: center;
            align-items: center;
            width: 30px;
            height: 30px;
            background-color: #fff;
            border-radius: 50%;
            margin: 0px 20px;
            cursor: pointer;
        }
        
        #iconlist li:nth-child(1) {
            background-color: red;
        }
        
        .ss {
            position: absolute;
            top: 50%;
            margin-top: -25px;
            width: 100%;
            display: flex;
            flex-flow: row;
            justify-content: space-between;
        }
        
        .ss span {
            width: 50px;
            height: 50px;
            background-color: pink;
        }
    style>
head>

body>
    div id="app">
        div id="banner">
            div id="imglist">
                a href="" v-for="(item,index) in Rot_a" :key="index">img :src="item" alt="">a>
            div>
            ul id="iconlist">
                li v-for="(item,index) in Rot_a" :key="index">li>
            ul>
            div class="ss">
                span @click="ss_a(1)">左span>
                span @click="ss_a(2)">右span>
            div>
        div>
    div>
body>
script>
    new Vue({
        el: ‘#app‘,
        data: function() {
            return {
                Rot_a: [
                    ‘image/01.jpg‘,
                    ‘image/02.jpg‘,
                    ‘image/03.jpg‘,
                    ‘image/04.jpg‘,
                ],
                num: 0,
            };
        },
        mounted() {
            this.aa()
        },
        methods: {
            aa() {
                var div = document.getElementById("banner")
                var icons = document.getElementById("iconlist").getElementsByTagName("li")
                that = this
                    // 设置循环变量
                    // 设置定时器
                var timer = setInterval(run, 1500)
                    // 循环函数
                function run() {
                    that.num = that.num + 1
                    if (that.num >= that.Rot_a.length) {
                        that.num = 0
                    }
                    console.log(that.num);

                    that.controlimg(that.num)
                    that.controlicon(that.num)
                }
                // 鼠标悬停事件
                div.onmouseover = function() {
                        // 停止定时器
                        clearInterval(timer);
                    }
                    // 鼠标移走事件
                div.onmouseout = function() {
                        timer = setInterval(run, 1500)
                    }
                    // 给图标绑定事件
                for (var i = 0; i  icons.length; i++) {
                    (function(i) {
                        icons[i].onmouseover = function() {
                            that.controlimg(i)
                            that.controlicon(i)
                                // 循环改变变量
                            that.num = i
                        }
                    })(i)
                }
            },
            ss_a(id) {
                that = this
                let ids = id
                that = this
                if (ids == 1) {
                    that.num = that.num - 1
                    if (that.num  -1) {
                        that.num = that.Rot_a.length - 1
                    }
                } else {
                    that.num = that.num + 1
                    if (that.num >= that.Rot_a.length) {
                        that.num = 0
                    }
                }
                that.controlimg(that.num)
                that.controlicon(that.num)
            },

            // 定义一个函数 控制图片
            controlimg(n) {
                var imgs = document.getElementById("imglist").getElementsByTagName("a")
                for (var i = 0; i  imgs.length; i++) {
                    imgs[i].style.display = "none"
                }
                // 显示指定图片
                imgs[n].style.display = "block"
            },
            controlicon(n) {
                var icons = document.getElementById("iconlist").getElementsByTagName("li")
                for (var i = 0; i  icons.length; i++) {
                    icons[i].style.backgroundColor = "#fff"
                }
                // 当前的图标变红
                icons[n].style.backgroundColor = "red"
            }
        }
    })
script>

html>

 

    style>
        * {
            padding: 0px;
            margin: 0px;
            list-style: none;
            text-decoration: none;
        }
        
        #banner {
            position: relative;
            width: 1280px;
            height: 600px;
            overflow: hidden;
            border: 2px solid red;
        }
        
        #imglist {
            width: 1280px;
            height: 600px;
        }
        
        #imglist>a {
            width: 1280px;
            height: 600px;
            display: none;
        }
        
        #imglist>a:nth-child(1) {
            display: block;
        }
        
        #imglist>a img {
            display: block;
            width: 100%;
            height: 100%;
        }
        
        #iconlist {
            position: absolute;
            display: flex;
            justify-content: center;
            align-items: center;
            width: 100%;
            height: 50px;
            bottom: 0px;
            left: 0px;
        }
        
        #iconlist li {
            display: flex;
            justify-content: center;
            align-items: center;
            width: 30px;
            height: 30px;
            background-color: #fff;
            border-radius: 50%;
            margin: 0px 20px;
            cursor: pointer;
        }
        
        #iconlist li:nth-child(1) {
            background-color: red;
        }
        
        .ss {
            position: absolute;
            top: 50%;
            margin-top: -25px;
            width: 100%;
            display: flex;
            flex-flow: row;
            justify-content: space-between;
        }
        
        .ss span {
            width: 50px;
            height: 50px;
            background-color: pink;
        }
    style>

vue.js实现轮播图

标签：rip   element   tag   strong   dde   name   body   ids   vue   

原文地址：https://www.cnblogs.com/it1998/p/13204084.html

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文章标题：vue.js实现轮播图
文章链接：http://soscw.com/index.php/essay/48626.html

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