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  • 原生无缝轮播

    <!DOCTYPE html>
    <html lang="en">
    
    <head>
        <meta charset="UTF-8">
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
        <meta http-equiv="X-UA-Compatible" content="ie=edge">
        <title>Document</title>
        <style>
            * {
                padding: 0;
                margin: 0;
            }
    
            #div1 {
                position: relative;
                 390px;
                height: 100px;
                margin: 100px auto;
                box-sizing: border-box;
                overflow: hidden;
                background-color: #111;
            }
    
            #div1>ul {
                position: absolute;
                background-color: #fff;
            }
    
            #div1>ul>li {
                list-style: none;
                border: 1px solid rebeccapurple;
                box-sizing: border-box;
                float: left;
                height: 100px;
            }
        </style>
        <script>
            window.onload = function () {
                var oDiv = document.getElementById('div1')
                var oUl = oDiv.getElementsByTagName('ul')[0]
                var list = oUl.getElementsByTagName('li')
                for (var i = 0; i < list.length; i++) {
                    list[i].style.width = oDiv.offsetWidth / list.length + 'px'
                }
                oUl.innerHTML = oUl.innerHTML + oUl.innerHTML
                oUl.style.width = list[0].offsetWidth * list.length + 'px'
                setInterval(function () {
                    if(oUl.offsetLeft < -oUl.offsetWidth/2) {
                        oUl.style.left = '0'
                    }
                    if(oUl.offsetLeft > 0) {
                        oUl.style.left =-oUl.offsetWidth/2+ 'px'
                    }
                    oUl.style.left = oUl.offsetLeft+2 + 'px'
                }, 100)
            }
        </script>
    </head>
    
    <body>
        <div id="div1">
            <ul>
                <li>1</li>
                <li>2</li>
                <li>3</li>
                <li>4</li>
            </ul>
        </div>
    </body>
    
    </html>
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  • 原文地址:https://www.cnblogs.com/maxiag/p/11806279.html
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