用 Javascript 实现锚点(Anchor)间平滑跳转-JS特效-爱易网页

用 Javascript 实现锚点(Anchor)间平滑跳转

日期：2014-05-18　浏览次数：20263 次

以下是程序代码

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>用 Javascript 实现锚点(Anchor)间平滑跳转</title>
    <script language="javascript">
    // 说明 ：用 Javascript 实现锚点(Anchor)间平滑跳转 
    // 转换为数字
    function intval(v)
    {    
    v = parseInt(v);    
    return isNaN(v) ? 0 : v;
    } 
    // 获取元素信息
    function getPos(e)
    {    
    var l = 0;    
    var t  = 0;    
    var w = intval(e.style.width);    
    var h = intval(e.style.height);    
    var wb = e.offsetWidth;    
    var hb = e.offsetHeight;    
    while (e.offsetParent)
    {       
     l += e.offsetLeft + (e.currentStyle?intval(e.currentStyle.borderLeftWidth):0);        
     t += e.offsetTop  + (e.currentStyle?intval(e.currentStyle.borderTopWidth):0);        
     e = e.offsetParent;    
     }    
     l += e.offsetLeft + (e.currentStyle?intval(e.currentStyle.borderLeftWidth):0);    
     t  += e.offsetTop  + (e.currentStyle?intval(e.currentStyle.borderTopWidth):0);    
     return {x:l, y:t, w:w, h:h, wb:wb, hb:hb}; } 
     // 获取滚动条信息
     function getScroll() 
     {    
     var t, l, w, h;         
     if (document.documentElement && document.documentElement.scrollTop)
     {        
     t = document.documentElement.scrollTop;        
     l = document.documentElement.scrollLeft;        
     w = document.documentElement.scrollWidth;       
     h = document.documentElement.scrollHeight;    
     }
     else if (document.body)
     {        
     t = document.body.scrollTop;        
     l = document.body.scrollLeft;        
     w = document.body.scrollWidth;        
     h = document.body.scrollHeight;    
     }    
     return { t: t, l: l, w: w, h: h };
     } 
     // 锚点(Anchor)间平滑跳转
     function scroller(el, duration)
     {    
     if(typeof el != 'object')
     {
     el = document.getElementById(el);
     }     
     if(!el) return;     
     var z = this;    
     z.el = el;    
     z.p = getPos(el);    
     z.s = getScroll();    
     z.clear = function()
     {
     window.clearInterval(z.timer);z.timer=null
     };    
     z.t=(new Date).getTime();     
     z.step = function()
     {        
     var t = (new Date).getTime();        
     var p = (t - z.t) / duration;        
     if (t >= duration + z.t)
     {            
     z.clear();            
     window.setTimeout(function(){z.scroll(z.p.y, z.p.x)},13);         }
     else {            
     st = ((-Math.cos(p*Math.PI)/2) + 0.5) * (z.p.y-z.s.t) + z.s.t;            
     sl = ((-Math.cos(p*Math.PI)/2) + 0.5) * (z.p.x-z.s.l) + z.s.l;            
     z.scroll(st, sl);        
     }    
     };    
     z.scroll = function (t, l){window.scrollTo(l, t)};    
     z.timer = window.setInterval(function(){z.step();},13);
     }
    </script>
    <style type="text/css">
    div.test
    {    
    width:400px;     margin:5px auto;     border:1px solid #ccc;
    }
    div.test strong
    {     font-size:16px;     background:#fff;     border-bottom:1px solid #aaa;     margin:0;     display:block;     padding:5px 0;     text-decoration:underline;     color:#059B9A;     cursor:pointer; } div.test p {     height:400px;     background:#f1f1f1;     margin:0;
    }
     </style>
</head>
<body>
    <form id="form1" runat="server">
    <div class="test">    
    <a name="header_1" id="header_1"></a>   
    <strong onclick="javascript:scroller('header_4', 800);">header_1 --> header_4</strong><p></p>
    </div> 
   
    <div class="test">    
    <a name="header_2" id="he</div></div>

<div class="clearfix"></div>
                    </div>
                    <nav aria-label="...">
                        <ul class="pager">
                            <li class="previous"><a href="4667">上一篇：狡猾的按钮特效</a></li>

<li class="next"><a href="1628">下一篇：jquery实现链接文字飘浮渐变提示特效代码</a></li>
                        </ul>
                    </nav>

<div class="alert alert-warning" role="alert">
                        <strong>免责声明：</strong> 本文仅代表作者个人观点，与爱易网无关。其原创性以及文中陈述文字和内容未经本站证实，对本文以及其中全部或者部分内容、文字的真实性、完整性、及时性本站不作任何保证或承诺，请读者仅作参考，并请自行核实相关内容。
                    </div>

<div class="col-md-6 col-xs-12">
                      <li class="articleAbout"><a href='/ItNews/6910' title='国美苏宁线上首度正面PK 京东列席4月电商战' target="_blank">
                        国美苏宁线上首度正面PK 京东列席4月电商战</a></li></div>
                   
                
                  <div class="col-md-6 col-xs-12">
                      <li class="articleAbout"><a href='/ItNews/34316' title='蜗牛移动董事长石海：号卡被叫停属乌龙事件' target="_blank">
                        蜗牛移动董事长石海：号卡被叫停属乌龙事件</a></li></div>
                   
                
                  <div class="col-md-6 col-xs-12">
                      <li class="articleAbout"><a href='/ItNews/34426' title='这一次，微软将带给我们什么惊喜？' target="_blank">
                        这一次，微软将带给我们什么惊喜？</a></li></div>
                   
                
                  <div class="col-md-6 col-xs-12">
                      <li class="articleAbout"><a href='/ItNews/34167' title='都是300元内 乐视盒子与小米盒子对比体验' target="_blank">
                        都是300元内 乐视盒子与小米盒子对比体验</a></li></div>
                   
                
                  <div class="col-md-6 col-xs-12">
                      <li class="articleAbout"><a href='/ItNews/6915' title='固话上网卡或将实名制 运营商泄露用户信息将被罚' target="_blank">
                        固话上网卡或将实名制 运营商泄露用户信息将被罚</a></li></div>
                   
                
                  <div class="col-md-6 col-xs-12">
                      <li class="articleAbout"><a href='/ItNews/6918' title='用户喊话当当网：我彻底把你们丢弃了' target="_blank">
                        用户喊话当当网：我彻底把你们丢弃了</a></li></div>
                   
                
                  <div class="col-md-6 col-xs-12">
                      <li class="articleAbout"><a href='/ItNews/6898' title='神州电脑中止IPO面前：再被质疑财务造假' target="_blank">
                        神州电脑中止IPO面前：再被质疑财务造假</a></li></div>
                   
                
                  <div class="col-md-6 col-xs-12">
                      <li class="articleAbout"><a href='/ItNews/34128' title='传苹果已告知鸿海：两款新iPhone下月发货' target="_blank">
                        传苹果已告知鸿海：两款新iPhone下月发货</a></li></div>
                   
                
                  <div class="col-md-6 col-xs-12">
                      <li class="articleAbout"><a href='/ItNews/34320' title='想玩P2P？几个您必须知道的潜规则' target="_blank">
                        想玩P2P？几个您必须知道的潜规则</a></li></div>
                   
                
        </ol>
    </div>
</div>

</div>

</div>
            </div>
            <div class="clearfix"></div>

<footer class=" footer navbar-bottom">
<em>友情链接：</em>
    
      <a href="http://www.aiyiweb.com/" target="_blank">爱易网 </a>            
    
      <a href="http://www.aiyiweb.com/" target="_blank">云虚拟主机技术 </a>            
    
      <a href="http://www.aiyiweb.com/" target="_blank">云服务器技术 </a>            
    
      <a href="http://www.aiyiweb.com/" target="_blank">程序设计技术 </a>            
    
      <a href="http://www.aiyiweb.com/" target="_blank">开发网站 </a>            
    
      <a href="http://www.aiyiweb.com/" target="_blank">APP开发教程 </a>            
    
<br />
<script type="text/javascript">(function(){document.write(unescape('%3Cdiv id="bdcs"%3E%3C/div%3E'));var bdcs = document.createElement('script');bdcs.type = 'text/javascript';bdcs.async = true;bdcs.src = 'http://znsv.baidu.com/customer_search/api/js?sid=15239353030108964139' + '&plate_url=' + encodeURIComponent(window.location.href) + '&t=' + Math.ceil(new Date()/3600000);var s = document.getElementsByTagName('script')[0];s.parentNode.insertBefore(bdcs, s);})();</script>

Copyright © 2013-2026 爱易网页 当前在线：1062人　
        网站在19时10分18秒内访问总人数：230528人
    3秒前 18.27%
　<a href="https://beian.miit.gov.cn" target="_blank">粤ICP备18100884号-2 </a>
<script charset="UTF-8" id="LA_COLLECT" src="//sdk.51.la/js-sdk-pro.min.js"></script>
<script>LA.init({ id: "JszEmKrtpbU59dY5", ck: "JszEmKrtpbU59dY5" })</script>

</footer>

</div>
   
</body>
</html>