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Javascript 實(shí)現(xiàn)圖片無縫滾動

更新時間：2014年12月19日 15:59:14 投稿：hebedich

這篇文章主要介紹了Javascript 實(shí)現(xiàn)圖片無縫滾動的相關(guān)資料,需要的朋友可以參考下

效果：鼠標(biāo)移入圖片停止?jié)L動，鼠標(biāo)移出自動滾動

可以調(diào)整向左或右方向滾動

<style type="text/css">

            * {

                margin: 0;

                padding: 0;

            }

            #div1 {

                overflow: hidden;

                width: 712px;

                height: 108px;

                margin: 100px auto;

                position: relative;

                background: red;

            }

            #div1 ul {

                position: absolute;

                left: 0;

                top: 0;

            }

            #div1 ul li {

                float: left;

                width: 178px;

                height: 108px;

                list-style: none;

            }

        </style>

復(fù)制代碼代碼如下:

<body>

        <a href="javascript:;">向左走</a>

        <a href="javascript:;">向右走</a>

        <div id="div1">

            <ul>

                <li>

                    <img src="img/無縫滾動/1.jpg" />

                </li>

                <li>

                    <img src="img/無縫滾動/2.jpg" />

                </li>

                <li>

                    <img src="img/無縫滾動/3.jpg" />

                </li>

                <li>

                    <img src="img/無縫滾動/4.jpg" />

                </li>

            </ul>

        </div>

    </body>

以上是一個簡單的布局，下面是主要的Javascript 代碼

復(fù)制代碼代碼如下:

<script type="text/javascript">

            window.onload = function() {

                var oDiv = document.getElementById("div1");

                var oUl = oDiv.getElementsByTagName('ul')[0];

                var aLi = oUl.getElementsByTagName('li');

                var speed = 2;            

                oUl.innerHTML += oUl.innerHTML;

                oUl.style.width = aLi[0].offsetWidth * aLi.length + 'px';

                function move() {

                    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 + speed + 'px';

                }

                var timer = setInterval(move, 30);

                oDiv.onmouseover = function() {

                    clearInterval(timer);

                };

                oDiv.onmouseout = function() {

                    timer = setInterval(move, 30);

                };

                document.getElementsByTagName('a')[0].onclick = function() {

                    speed = -2;

                };

                document.getElementsByTagName('a')[1].onclick = function() {

                    speed = 2;

                };

            }

        </script>