本文实例讲述了js基于cookie记录来宾姓名的方法。分享给大家供大家参考，具体如下：
<!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>无标题文档</title><script language="JavaScript"><!-- Beginvar expDays = 30;var exp = new Date();exp.setTime(exp.getTime() + (expDays*24*60*60*1000));function Who(info){var VisitorName = GetCookie('VisitorName')if (VisitorName == null) {VisitorName = prompt("您的尊姓大名：");SetCookie ('VisitorName', VisitorName, exp);}return VisitorName;}function When(info){var rightNow = new Date()var WWHTime = 0;WWHTime = GetCookie('WWhenH')WWHTime = WWHTime * 1var lastHereFormatting = new Date(WWHTime);var intLastVisit = (lastHereFormatting.getYear() * 10000)+(lastHereFormatting.getMonth() * 100) + lastHereFormatting.getDate()var lastHereInDateFormat = "" + lastHereFormatting;var dayOfWeek = lastHereInDateFormat.substring(0,3)var dateMonth = lastHereInDateFormat.substring(4,11)var timeOfDay = lastHereInDateFormat.substring(11,16)var year = lastHereInDateFormat.substring(23,25)var WWHText = dayOfWeek + ", " + dateMonth + " at " + timeOfDaySetCookie ("WWhenH", rightNow.getTime(), exp)return WWHText}function Count(info){var WWHCount = GetCookie('WWHCount')if (WWHCount == null) {WWHCount = 0;}else{WWHCount++;}SetCookie ('WWHCount', WWHCount, exp);return WWHCount;}function set(){VisitorName = prompt("Who are you?");SetCookie ('VisitorName', VisitorName, exp);SetCookie ('WWHCount', 0, exp);SetCookie ('WWhenH', 0, exp);}function getCookieVal (offset) {var endstr = document.cookie.indexOf (";", offset);if (endstr == -1)endstr = document.cookie.length;return unescape(document.cookie.substring(offset, endstr));}function GetCookie (name) {var arg = name + "=";var alen = arg.length;var clen = document.cookie.length;var i = 0;while (i < clen) {var j = i + alen;if (document.cookie.substring(i, j) == arg)return getCookieVal (j);i = document.cookie.indexOf(" ", i) + 1;if (i == 0) break;}return null;}function SetCookie (name, value) {var argv = SetCookie.arguments;var argc = SetCookie.arguments.length;var expires = (argc > 2) ? argv[2] : null;var path = (argc > 3) ? argv[3] : null;var domain = (argc > 4) ? argv[4] : null;var secure = (argc > 5) ? argv[5] : false;document.cookie = name + "=" + escape (value) +((expires == null) ? "" : ("; expires=" + expires.toGMTString())) +((path == null) ? "" : ("; path=" + path)) +((domain == null) ? "" : ("; domain=" + domain)) +((secure == true) ? "; secure" : "");}function DeleteCookie (name) {var exp = new Date();exp.setTime (exp.getTime() - 1);var cval = GetCookie (name);document.cookie = name + "=" + cval + "; expires=" + exp.toGMTString();}// End --></script></head><body>提示： 在第一次来到本页时提醒你输入你的姓名，以后就不用了，它会每次在你来时告诉你是第多少次来，并且注明上次来本页的时间<br/> <script language="JavaScript">if (Count()==0){document.write("您好!" + Who() + ". 您首次来这儿,请多提宝贵意见.");}else{document.write("您好!" + Who() + ". 您已来这儿 " + Count() + "次了，最后一次在 " + When() +".");}</script></body></html>更多关于JavaScript相关内容感兴趣的读者可查看本站专题：《JavaScript中json操作技巧总结》、《JavaScript切换特效与技巧总结》、《JavaScript查找算法技巧总结》、《JavaScript动画特效与技巧汇总》、《JavaScript错误与调试技巧总结》、《JavaScript数据结构与算法技巧总结》、《JavaScript遍历算法与技巧总结》及《JavaScript数学运算用法总结》
希望本文所述对大家JavaScript程序设计有所帮助。