本文實例講述了js基於cookie記錄來賓姓名的方法。分享給大家供大家參考，具體如下：
<!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>無標題文檔</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： 在第一次來到本頁時提醒你輸入你的姓名，以後就不用了，它會每次在你來時告訴你是第多少次來，並且註明上次來本頁的時間<br/> <script language="JavaScript">if (Count()==0){document.write("您好!" + Who() + ". 您首次來這兒,請多提寶貴意見.");}else{document.write("您好!" + Who() + ". 您已來這兒" + Count() + "次了，最後一次在" + When() +".");}</script></body></html>更多關於JavaScript相關內容感興趣的讀者可查看本站專題：《JavaScript中json操作技巧總結》、《JavaScript切換特效與技巧總結》、《JavaScript查找算法技巧總結》、《JavaScript動畫特效與技巧匯總》、《JavaScript錯誤與調試技巧總結》、《JavaScript數據結構與算法技巧總結》、《JavaScript遍曆算法與技巧總結》及《JavaScript數學運算用法總結》
希望本文所述對大家JavaScript程序設計有所幫助。