这是一个手动控制进度条的小程序，分享给大家：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title> jQuery手动拖动进度条</title> <style type="text/css"> #box{position: relative; width: 200px; height: 50px; border: 1px solid #eee; margin: 50px auto 0;} #bg{height: 10px; margin-top: 19px; border: 1px solid #ddd; border-radius: 5px; overflow: hidden;} #bgcolor{background: #5889B2; width: 0; height: 10px; border-radius: 5px;} #bt{width: 34px; height: 34px;background-color: red; border-radius: 17px; overflow: hidden; position: absolute; left: 0px; margin-left: -17px; top: 8px; cursor: pointer;} #text{width: 200px; margin: 0 auto; font-size: 16px; line-height: 2em;} </style> <script src="https://libs.baidu.com/jquery/2.0.0/jquery.min.js"></script> </head> <body> <div> <div> <div></div> </div> <div></div> </div> <div></div> <script type="text/javascript"> (function($){ var $box = $('#box'); var $bg = $('#bg'); var $bgcolor = $('#bgcolor'); var $btn = $('#bt'); var $text = $('#text'); var statu = false; var ox = 0; var lx = 0; var left = 0; var bgleft = 0; $btn.mousedown(function(e){ lx = $btn.offset().left; ox = e.pageX - left; statu = true; }); $(document).mouseup(function(){ statu = false; }); $box.mousemove(function(e){ if(statu){ left = e.pageX - ox; if(left < 0){ left = 0; } if(left > 200){ left = 200; } $btn.css('left',left); $bgcolor.width(left); $text.html('位置:' + parseInt(left/2) + '%'); } }); $bg.click(function(e){ if(!statu){ bgleft = $bg.offset().left; left = e.pageX - bgleft; if(left < 0){ left = 0; } if(left > 200){ left = 200; } $btn.css('left',left); $bgcolor.stop().animate({width:left},200); $text.html('位置:' + parseInt(left/2) + '%'); } }); })(jQuery); </script> </div> </body> </html>
运行效果：
更多关于jQuery相关内容感兴趣的读者可查看本站专题：《jQuery常用插件及用法总结》、《jQuery拖拽特效与技巧总结》、《jQuery常见经典特效汇总》、《jQuery扩展技巧总结》、《jQuery表格(table)操作技巧汇总》、《jQuery动画与特效用法总结》及《jquery选择器用法总结》