js基于cookie记录来宾姓名的方法

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js基于cookie记录来宾姓名的方法

来源：阅读：693 次日期：2016-08-01 14:16:10

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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">

<head>

<title>无标题文档</title>

<!-- Begin

var 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 * 1

var 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 " + timeOfDay

SetCookie ("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/>

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>

希望本文所述对大家JavaScript程序设计有所帮助。

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