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  <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>無標題文檔</title> <script src="http://jqueryjs.googlecode.com/files/jquery-1.3.2.min.js" type="text/javascript" language="javascript"></script> <script type="text/javascript"> $(function(){ var scro_zoom = parseInt($(".scro_mouse").width()/2); var scro = $("#scro"); var scroWidth = parseInt($("#scro").width()); var scroImgWidth = parseInt($(".scro_img ul li").width()); var scroMouse = parseInt($(".scro_mouse").width()); var scroMove = $(".scro_img ul"); var scroImgLength = $(".scro_img ul li").length; var scroImgBoxWidth = scroImgWidth * scroImgLength + scroImgLength * 10 + 10; var zoompos = {x:0,y:0}; var flag = false; var scropos; scroMove.css("width",scroImgBoxWidth + "px"); $(".scro_mouse").bind("mousedown",function(e){ flag = true; $(this).css("background","blue"); $(".show").fadeIn(300); return false; }).mousemove(function(e){ if(flag){ $zoompos(e.pageX,e.pageY); $(this).css("left",zoompos.x); scroMove.css("left",-scropos + "px"); } }).mouseup(function(e){ flag = false; $(".show").hide(); $(this).css("background","#ccc"); }) $(document).mouseup(function(e){ flag = false; $(".show").hide(); $(".scro_mouse").css("background","#ccc"); }) function $zoompos(x,y){ zoompos.x = x - scro.offset().left - scro_zoom; //得到left值; zoompos.y = y - scro.offset().top - 5;//得到top值; scropos = parseInt((scroImgBoxWidth - scroWidth) / (scroWidth - scroMouse) * zoompos.x); if(zoompos.x <= 0){ zoompos.x = 0; } if(zoompos.x + scroMouse >= scroWidth){ zoompos.x = scroWidth - scroMouse; } if(scropos < 0){ scropos = 0; } if(scropos >= scroImgBoxWidth - scroWidth){ scropos = scroImgBoxWidth - scroWidth; } $(".show").text( zoompos.x + "," + zoompos.y + "," + $(".scro_mouse").css("left")); } }) </script> <style type="text/css"> *{ margin:0; padding:0;} #box{ width:460px; border:1px solid #000; margin:50px auto;} #scro{ width:100%; height:30px; background:red; margin:10px 0; position:relative;} .scro_line{ width:100%; height:0; overflow:hidden; border-top:2px groove #000; position:absolute; left:0; top:15px; z-index:0;} .scro_mouse{ width:66px; height:20px; background:#ccc; cursor:pointer; position:absolute; left:0; top:5px; z-index:1;} .show{ width:100px; height:30px; position:absolute; display:none; top:-30px; left:0;} .scro_img{ width:460px; height:60px; margin:10px 0; overflow:hidden; position:relative;} .scro_img ul{ position:absolute; left:0; top:0;} .scro_img ul li{ display:inline; float:left; width:80px; height:60px; margin-left:10px; background:red;} </style> </head> <body> <div class="xrd7t5z" id="box"> <div id="7f5f55d" class="scro_img"> <ul> <li>1</li> <li>2</li> <li>3</li> <li>4</li> <li>5</li> <li>6</li> <li>7</li> <li>8</li> <li>9</li> <li>10</li> <li>11</li> <li>12</li> </ul> </div> <div class="r55z55v" id="scro"> <div id="7z55vdb" class="show"></div> <div id="nvzpdpl" class="scro_line"></div> <div id="nvjxpnj" class="scro_mouse"></div> </div> <div id="z7xnnn5" class="text"></div> </div> </body> </html>

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