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jquery实现无限滚动之可控滚动

来源：互联网发布：夏普m2608n网络扫描编辑：程序博客网时间：2024/04/28 22:00

<html>
   <head>
       <title>无限滚动之可控滚动</title>
       <style type="text/css">
           body{ font-family: "Trebuchet MS",verdana,arial;}
           #loading{ display:none; font-weight:bold;color:#FF0000;}
           p { padding:10px;}
       </style>

   </head>
   <body>
       <div id="container">
           <p>Test Paragraph 1</p>
           <p>Test Paragraph 2</p>
           <p>Test Paragraph 3</p>
           <p>Test Paragraph 4</p>
           <p>Test Paragraph 5</p>
           <p>Test Paragraph 6</p>
           <p>Test Paragraph 7</p>
           <p>Test Paragraph 8</p>
           <p>Test Paragraph 9</p>
           <p>Test Paragraph 10</p>
           <p>Test Paragraph 11</p>
           <p>Test Paragraph 12</p>
           <p>Test Paragraph 13</p>
           <p>Test Paragraph 14</p>
           <p>Test Paragraph 15</p>
           <p>Test Paragraph 16</p>
           <p>Test Paragraph 17</p>
           <p>Test Paragraph 18</p>
           <p>Test Paragraph 19</p>
           <p>Test Paragraph 20</p>
       </div>
       <p id="loading">loading data... </p>
       <script type="text/javascript" src="jquery.js"></script>
       <script type="text/javascript">
           $(document).ready(function()
           {
               $(window).scroll(loadData);
           });

           var counter = 0;
           function loadData()
           {
               if(counter <= 5) //控制显示长度
               {
                   if (isUserAtBottom())
                   {
                       getData();
                   }
               }
           }
           function isUserAtBottom()
           {
               return ((($(document).height() - $(window).height()) - $(window).scrollTop()) <= 50) ? true : false;
           }
           function getData()
           {
               $(window).unbind('scroll');
               $('#loading').show();

               $.get(
               'data.php',
               {},
               function(response)
               {
                   counter++;
                   $('#loading').hide();
                   $('#container').append(response);
                   $(window).scroll(loadData);
               });
           }
       </script>
   </body>

</html>

php代码

<?php

sleep(2);
echo '<p>This data has been <br/>loaded from server...</p>';

?>

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