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jQuery實(shí)現(xiàn)滑動(dòng)頁(yè)面固定頂部顯示(可根據(jù)顯示位置消失與替換)

 更新時(shí)間：2015年10月28日 10:33:18   作者：企鵝  
這篇文章主要介紹了jQuery實(shí)現(xiàn)滑動(dòng)頁(yè)面固定頂部顯示,還可根據(jù)顯示位置消失與替換對(duì)應(yīng)的當(dāng)前顯示項(xiàng),具有一定參考借鑒價(jià)值,需要的朋友可以參考下

本文實(shí)例講述了jQuery實(shí)現(xiàn)滑動(dòng)頁(yè)面固定頂部顯示(可根據(jù)顯示位置消失與替換)。分享給大家供大家參考，具體如下：

這里介紹的jQuery拉動(dòng)頁(yè)面固定頂部顯示，及自動(dòng)消失效果，可能ie瀏覽器下有問(wèn)題，不過(guò)火狐什么的都可以運(yùn)行看效果，一個(gè)簡(jiǎn)單的網(wǎng)頁(yè)特效，也是很常用的“回到頂部”效果，有興趣的看一下。

運(yùn)行效果截圖如下：

在線演示地址如下：

http://demo.jb51.net/js/2015/jquery-fix-top-cha-show-codes/

具體代碼如下：

<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>回到頂部：哭泣的小丑</title>
<script src="jquery-1.6.2.min.js"></script>
<!-- CSS模板清除 -->
<style>
html, body, div, span, applet, object, iframe,h1, h2, h3, h4, h5, h6, p, blockquote, pre,a, abbr, acronym, address, big, cite, code,del, dfn, em, img, ins, kbd, q, s, samp,small, strike, strong, sub, sup, tt, var,b, u, i, center,dl, dt, dd, ol, ul, li,fieldset, form, label, legend, input,table, caption, tbody, tfoot, thead, tr, th, td,article, aside, canvas, details, embed,figure, figcaption, footer, header, hgroup,menu, nav, output, ruby, section, summary,time, mark, audio, video {margin: 0;padding: 0;border: 0;font-size: 100%;}
article, aside, details, figcaption, figure,footer, header, hgroup, menu, nav, section {display: block;float:left;}select, input, button,button img, label {vertical-align: middle;}body {font:normal 12px/1.5 "Microsoft Yahei","微軟雅黑",Tahoma,Arial,Helvetica,STHeiti; webkit-font-smoothing:antialiased;-moz-font-smoothing: subpixel-antialiased; color:#666;}ol, ul {list-style: none;}blockquote, q {quotes: none;}blockquote:before, blockquote:after,q:before, q:after {content: '';content: none;}table {border-collapse: collapse;border-spacing: 0;}em {font-style: normal}select, input, button, button img, label {vertical-align:middle;}input {font-family:"Microsoft Yahei","微軟雅黑";webkit-font-smoothing:antialiased;-moz-font-smoothing: subpixel-antialiased}input, input:focus, button, button:focus, select,textarea, textarea:focus {outline:none; -moz-outline:none; -webkit-outline:none; }input:focus { outline:none; -moz-outline:none; -webkit-outline:none; }textarea {resize:none;}a {color:#666; text-decoration:none;} a:hover {text-decoration:underline;}a:focus {outline:none; -moz-outline:none;-webkit-outline:none;}body {min-width: 960px;}
</style>
<!-- CSS模板清除 E-->
<!-- main CSS -->
<style>
body{background:#e7e7e7;}
.clearfix:before, .clearfix:after, .container_24:before, .container_24:after {
 content: '.'; display: block; overflow: hidden; visibility: hidden; font-size: 0; line-height: 0; width: 0; height: 0;}
.clearfix:after, .container_24:after { clear: both; }
.Xc_main{width:750px;margin:0 auto;position:relative;}
.Xc_left{float:left;}
.Xc_left h1{font-size:24px;padding-top:25px;}
.Xc_right{float:right;width:600px;}
.Xc_right .Xc_list{margin:10px 0 10px 0;}
.Xc_list_top,.Xc_list_main{background:#fff;padding:10px;border:1px solid #ccc;}
.Xc_list_top{margin-bottom:10px;}
.Xc_gg{width:90px;height:90px;border:1px solid #ccc;background:#fff;text-align:center;}
.Xc_bottom{height:650px;background:#fff;padding:10px;border:1px solid #ccc;position:relative;}
</style>
<!-- main CSS E-->
</head>
<script>
$(function () {
 $(".Xc_list_top").css("width",$(".Xc_list_main").width());
 var resetRightPanelPostion = function () {
 var msie6 = $.browser.msie && $.browser.version == '6.0' && $.browser.version < 7;
 if ($.browser.safari) {
  bodyelem = $("body");
 } else {
  bodyelem = $("html,body");
 }
 var bodyTop = bodyelem.scrollTop();
 var top = $(".Xc_left").offset().top;
 //var t = $("#public_footer").offset().top;
 var t = $("#footerDestinationBox").offset().top;
 //var bottom = $("#footerDestinationBox").offset().top;
  for(var i = 0 ; i < $(".Xc_list .Xc_list_top").length ; i++){
   if (bodyTop >= top && ((bodyTop + $(".Xc_left").outerHeight()) < t)) {
    if (!msie6) {
     if (bodyTop + $(".Xc_gg").outerHeight() >= t) {
      $(".Xc_gg").removeClass('fixed').css({
       "position": "absolute",
       "top": t - $(".Xc_gg").outerHeight() + "px"
      });
     } else {
      $(".Xc_gg").css({
       "position": "fixed",
       "top": 0
      });
     }
    }
   } else {
    if (!msie6) {
     $(".Xc_gg").css({
      "position": "static"
     });
    }
   }
   if(bodyTop>$(".Xc_list").eq(i).offset().top){
    $(".Xc_list_top").eq(i).css({position:"absolute",top:top-168});
   }
   if(bodyTop>$(".Xc_list").eq(i).offset().top){
    $(".Xc_list_top").eq(i).css({position:"fixed",top:0});
   }
   if(bodyTop<=$(".Xc_list").eq(i).offset().top){
    $(".Xc_list_top").eq(i).css({position:"static",top:0});
   }
  }
 };
 window.onload = function () {
 if ($(".Xc_gg").length) {
  resetRightPanelPostion();
  $(window).scroll(function () {
  resetRightPanelPostion();
  });
 }
 }
})
</script>
<body>
<div class="Xc_main clearfix">
 <div class="clearfix" style="margin-top:90px;float:left;">
 <div class="Xc_left">
  <div class="Xc_gg">
  <h1>小丑</h1>
  <div style="margin-top:40px;">Q群:<em style="color:#0069D6;">150508281</em></div>
  </div>
 </div>
 </div>
 <div class="Xc_right clearfix">
  <div class="Xc_list">
  <div class="Xc_list_top" id="Xc_list_top">top 1</div>
  <div class="Xc_list_main" style="height:300px;background:#fff;">
  </div>
 </div>
 <div class="Xc_list">
  <div class="Xc_list_top">top 2</div>
  <div class="Xc_list_main" style="height:300px;background:#fff;">
  </div>
 </div>
 <div class="Xc_list">
  <div class="Xc_list_top">top 3</div>
  <div class="Xc_list_main" style="height:300px;background:#fff;">
  </div>
 </div>
 <div class="Xc_list">
  <div class="Xc_list_top">top 4</div>
  <div class="Xc_list_main" style="height:300px;background:#fff;">
  </div>
 </div>
 <div class="Xc_list">
  <div class="Xc_list_top">top 5</div>
  <div class="Xc_list_main" style="height:300px;background:#fff;">
  </div>
 </div>
 <div class="Xc_list">
  <div class="Xc_list_top">top 6</div>
  <div class="Xc_list_main" style="height:300px;background:#fff;">
  </div>
 </div>
 </div>
</div>
<div class="Xc_bottom clearfix" id="footerDestinationBox">
 <div style="position:absolute;top:40px;right:50px;"> by 藍(lán)色理想 @哭泣的小丑</div>
</div>
</body>
</html>

希望本文所述對(duì)大家jQuery程序設(shè)計(jì)有所幫助。

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