<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <title>邮箱自动补全</title> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <script type="text/javascript" src="js/jquery-1.10.2.min.js"></script> <script type="text/javascript"> $(function(){ $.AutoComplete("#email"); //（要补全文本框的id） }); </script> <style> #AutoComplete{background:#fff;border:1px solid #4190db;display:none;width:150px;} #AutoComplete ul{list-style-type:none;margin:0;padding:0;} #AutoComplete li{color:#333;cursor:pointer;font:12px/22px 5b8b4f53;text-indent:5px;} #AutoComplete .hover{background:#6eb6fe;color:#fff;}</style> </head> <body> <form action=""> 姓名：<input type="text" name="userName" id="userName"/><br/> 邮箱：<input type="text" name="email" id="email"/> </form> <script> jQuery.AutoComplete = function(selector){ var elt = $(selector); var strHtml = '<div class="AutoComplete" id="AutoComplete">'+ ' <ul class="AutoComplete_ul">'+ ' <li hz="@163.com"></li>'+ ' <li hz="@126.com"></li>'+ ' <li hz="@139.com"></li>'+ ' <li hz="@189.com"></li>'+ ' <li hz="@qq.com"></li>'+ ' <li hz="@vip.sina.com"></li>'+ ' <li hz="@sina.cn"></li>'+ ' <li hz="@sina.com"></li>'+ ' <li hz="@sohu.com"></li>'+ ' <li hz="@hotmail.com"></li>'+ ' <li hz="@gmail.com"></li>'+ ' <li hz="@wo.com.cn"></li>'+ ' <li hz="@21cn.com"></li>'+ ' <li hz="@aliyun.com"></li>'+ ' <li hz="@yahoo.com"></li>'+ ' <li hz="@foxmail.com"></li>'+ ' </ul>'+ ' </div>'; //将div追加到body上 $('body').append(strHtml); var autoComplete,autoLi; autoComplete = $('#AutoComplete'); autoComplete.data('elt',elt); autoLi = autoComplete.find('li'); autoLi.mouseover(function(){ $(this).siblings().filter('.hover').removeClass('hover'); $(this).addClass('hover'); }).mouseout(function(){ $(this).removeClass('hover'); }).mousedown(function(){ autoComplete.data('elt').val($(this).text()).change(); autoComplete.hide(); }); //用户名补全+翻动 elt.keyup(function(e){ if(/13|38|40|116/.test(e.keyCode) || this.value==''){ return false; } var username = this.value; if(username.indexOf('@')==-1){ autoComplete.hide(); return false; } autoLi.each(function(){ this.innerHTML = username.replace(/@+.*/,'')+$(this).attr('hz'); if(this.innerHTML.indexOf(username)>=0){ $(this).show(); }else{ $(this).hide(); } }).filter('.hover').removeClass('hover'); autoComplete.show().css({ left : $(this).offset().left, top : $(this).offset().top + $(this).outerHeight(true) - 1, position: 'absolute', zIndex: '99999' }); if(autoLi.filter(':visible').length==0){ autoComplete.hide(); }else{ autoLi.filter(':visible').eq(0).addClass('hover'); } }).keydown(function(e){ if(e.keyCode==38){ //上 autoLi.filter('.hover').prev().not('.AutoComplete_title').addClass('hover').next().removeClass('hover'); }else if(e.keyCode==40){ //下 autoLi.filter('.hover').next().addClass('hover').prev().removeClass('hover'); }else if(e.keyCode==13){ //确定 autoLi.filter('.hover').mousedown(); } }).focus(function(){ autoComplete.data('elt',$(this)); }).blur(function(){ autoComplete.hide(); }); }; </script> </body> </html>