JavaScript瀑布流

来源:互联网 发布:字数统计英文 编程思路 编辑:程序博客网 时间:2024/05/15 06:39

JS瀑布流效果

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"><html lang="en">    <head>        <meta http-equiv="Content-Type" content="text/html;charset=UTF-8">        <title>瀑布流效果</title>        <style type="text/css">            *{                margin:0;                padding:0;            }            h1{                text-align:center;                height:100px;            }            body{                background-color:RGB(232,231,226);            }            .all{                margin:0 auto;                width:1000px;            }            .number{                float:left;                width:225px;            }            .content            {                margin:5px;                background-color:white;            }            img{                margin:5px;            }            .loading{                position: absolute;                 width:100%;                height:40px;                display:none;                text-align:center;                background-color:RGB(189,203,207);            }            #toTop            {                position:fixed;                 _position:fixed;                font-size:12px;                color:Blue;                width:15px;                text-align:center;                right:300px;                bottom:100px;                cursor:pointer;                background-color:RGB(243,247,251);                display:none;            }        </style>        <script type="text/javascript">            window.onload = function () {                //初始参数                var reset = 0; //某些滚动条会触发三次scroll事件 用这个解决                var surplusHeight = 800; //差值                var imgWidth = "206px"; //img的宽度                var imgHeight = 0; //img的高度                var textHeight = 0; //文字高度                var showTopButtonHeight = 500;//回到顶部按钮的距离                var bigDivCount = 4;                var div1 = $("one");                var div2 = $("two");                var div3 = $("three");                var div4 = $("four");                var loading = $("loading");                var toTop = $("toTop");                //得到浏览器的名称                var browser = getBrowser();                //数据源                var imgArray = []; //img数组 也就是数据来源                var textArray = []; //img底下的文字和img对应                textArray[0] = "test_test_";                textArray[1] = "test_test_test_test_";                textArray[2] = "test_test_test_test_test_test_";                textArray[3] = "test_test_test_test_test_test_test_test_";                textArray[4] = "test_test_   test_test_";                textArray[5] = "test_test_test_test_";                textArray[6] = "test_test_";                textArray[7] = "test_test_test_test_";                textArray[8] = "test_test_test_test_test_test_";                textArray[9] = "test_test_tes";                textArray[10] = "test_test_";                textArray[11] = "test_test_";                textArray[12] = "test_test_test_";                textArray[13] = "test_test_test_test";                textArray[14] = "test_test_test_test";                textArray[15] = "test_test_test_test_";                imgArray[0] = "1.jpg";                imgArray[1] = "2.jpg";                imgArray[2] = "3.jpg";                imgArray[3] = "4.jpg";                imgArray[4] = "5.jpg";                imgArray[5] = "6.jpg";                imgArray[6] = "7.jpg";                imgArray[7] = "8.jpg";                imgArray[8] = "9.jpg";                       //初始化                loadImg();                //主会场                window.onscroll = fun_scroll;                //滚动方法                function fun_scroll() {                    //body的高度                    var topAll = (browser == "Firefox") ? document.documentElement.scrollHeight : document.body.scrollHeight;                    //卷上去的高度                    var top_top = document.body.scrollTop || document.documentElement.scrollTop;                    //回到顶部按钮操作                    if (top_top > showTopButtonHeight)                        toTop.style.display = "block";                    else                        toTop.style.display = "none";                    //控制滚动条次数以及判断是否到达底部                    if (reset == 0) {                        var topAll = (browser == "Firefox") ? document.documentElement.scrollHeight : document.body.scrollHeight; //body的高度                        var top_top = document.body.scrollTop || document.documentElement.scrollTop; //卷上去的高度                        var result = topAll - top_top;                        if (result < surplusHeight) {                            setTimeout(loadImg, 1000);                            reset = 1;                        }                    } else {                        setTimeout(function () { reset = 0; }, 1000);                    }                }                //加载图片                function loadImg() {                    loading.style.display = "none";                    for (var i = 0; i < bigDivCount; i++) {                        div1.appendChild(addDiv());                        div2.appendChild(addDiv());                        div3.appendChild(addDiv());                        div4.appendChild(addDiv());                    }                    setTimeout(function () {                        var hh = (browser == "Firefox") ? document.documentElement.scrollHeight : document.body.scrollHeight;                        loading.style.top = hh + "px";                        loading.style.display = "block";                    }, 1000);                }                //声明一个包含img和title的div                function addDiv() {                    //数组下标的随机值                    var ran = Math.round(Math.random() * (imgArray.length - 1));                    //title层                    var small_div = document.createElement("div");                    small_div.innerHTML = textArray[ran];                    //内部img                    var img = document.createElement("img");                    img.alt = "";                    img.src = imgArray[ran];                    img.style.width = imgWidth;                    //包含img的层                    var div = document.createElement("div");                    div.className = "content";                    div.appendChild(img);                    div.appendChild(small_div);                    return div;                }                //通过id得到对象                function $(id) {                    return document.getElementById(id);                }                //得到浏览器的名称                function getBrowser() {                    var OsObject = "";                    if (navigator.userAgent.indexOf("MSIE") > 0) {                        return "MSIE";                    }                    if (isFirefox = navigator.userAgent.indexOf("Firefox") > 0) {                        return "Firefox";                    }                    if (isSafari = navigator.userAgent.indexOf("Safari") > 0) {                        return "Safari";                    }                    if (isCamino = navigator.userAgent.indexOf("Camino") > 0) {                        return "Camino";                    }                    if (isMozilla = navigator.userAgent.indexOf("Gecko/") > 0) {                        return "Gecko";                    }                }                //回到顶部                toTop.onclick = function () {                    var count = 500; //每次的距离                    var speed = 200; //速度                    var timer = setInterval(function () {                        var top_top = document.body.scrollTop || document.documentElement.scrollTop;                        var tt = top_top - count;                        tt = (tt < 300) ? 0 : tt;                        if (top_top > 0)                            window.scrollTo(tt, tt);                        else                            clearInterval(timer);                    }, speed)                };            }            </script>        </head>        <body>            <h1 id="h1">I like TRY</h1>            <div id="all"  class="all">                <div id="one" class="number">                </div>                <div id="two" class="number">                </div>                <div  id="three"  class="number">                </div>                <div id="four" class="number">                </div>            </div>            <div id="loading" class="loading">                <img src="http://www.xesee.com/upload/200803131036175436.gif" />            </div>            <div id="toTop"><span>△回顶部</span></div>        </body>    </html>


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