一句jQuery代碼返回頂部
效果體驗：
http://hovertree.com/texiao/yestop/
使用方法：
只需引用jQuery庫和YesTop插件，然后一句代碼就可以實現返回頂部：
引用代碼：
<script type="text/javascript" src="http://hovertree.com/ziyuan/jquery/jquery-1.11.3.min.js"></script> <script type="text/javascript" src="http://hovertree.com/texiao/yestop/inc/jquery.yestop.js"></script>
使用代碼：
<script type="text/javascript"> $(document).ready(function () { $.fn.yestop(); }) </script>
也就是：
$.fn.yestop();
這句代碼就可以了。
當然還有高級的設置，如換圖片，設置圖標為圓形，設置位置，設置時間等等。詳情請查看其他Demo。
完整代碼，保存到HTML文件就可以體驗效果：
<!DOCTYPE html> <html> <head><meta charset="UTF-8"> <title>YesTop - HoverTree</title><meta name="viewport" content="width=device-width, initial-scale=1.0"> <script type="text/javascript" src="http://hovertree.com/ziyuan/jquery/jquery-1.11.3.min.js"></script> <script type="text/javascript" src="http://hovertree.com/texiao/yestop/inc/jquery.yestop.js"></script> <style> body { margin: 0px;font-family:Arial }a{color:blue} </style> </head> <body> <div style="text-align:center;width:100%;margin:0px auto;"> <h1>YesTop</h1> A jQuery Plugin<br /> <a href="http://hovertree.com/texiao/yestop/">Demo 1</a> <a href="http://hovertree.com/texiao/yestop/demo2.htm">Demo 2</a> <a href="http://hovertree.com/texiao/yestop/demo3.htm">Demo 3</a> <a href="http://hovertree.com/texiao/yestop/demo4.htm">Demo 4</a> <a href="http://hovertree.com/h/bjaf/topimage.htm">Images</a> </div> <div style="height: 360px;background-color: #66FF66;"> </div> <div style="width:100%;text-align:center;height:200px">© hovertree.com</div> <div style="height: 200px; visibility: visible; background-color: Olive"> </div><div style="height:200px;background-color:burlywood"></div><div style="height:200px;background-color:darkorchid"></div> <div style="height: 200px; visibility: visible; background-color:gray"> </div> <div style="height:200px;background-color:blue"></div> <div style="height:200px;background-color:red"></div> <div style="height:200px;background-color:yellow"></div> <div style="height:200px;background-color:yellowgreen"></div> <div style="height:800px;background-color:white"></div> <script type="text/javascript"> $(document).ready(function () { $.fn.yestop(); }) </script> </body> </html>