cookies示例:记录用户当前第几次访问

<html>
<head>
<title>记录客户信息</title>
<script language="JavaScript">
<!--
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("请输入姓名：",'');
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); // 访问时间记录r
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 // display
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("??????",'');
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) { //读取cookie中的信息
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) //设置Cookie内容
{ 
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); 
// 历史记录
var cval = GetCookie (name); 
document.cookie = name + "=" + cval + "; expires=" + exp.toGMTString();
}
 -->
</script>
</head>

<body bgcolor="#ADADAD">
<hr>
<div align="center"><center>
    <font color="#FF0000">访客登记</font></p>
    <table border="0" width="523" cellspacing="0" cellpadding="0" height="34">
      <tr>
        <td width="1" height="16"><br>
        </td>
        <td width="552" height="16"><table border="1" width="100%">
          <tr>
            <td width="100%" bgcolor="#e8ffe8"><font color="#CC0099"><script language="JavaScript">
<!-- Hide this script from old browsers --
document.write("您好 <b>" + Who() + "</b>，您是第 <b>" + Count() + "</b> 次访问本主页. 最后一次是 <b>" + When() +"</b>. ")
document.write('<a href="JavaScript:set()">[按此改名]</a>')
// -- End Hiding Here -->
</script> 
            </font></td>
          </tr>
        </table>
</center></div>
<div align="center">
<font class=30pt>返回的cookie信息有:访客名字;浏览网页的次数;上次浏览网页的时间，用户可以自己更改姓名。
</font>
</div>
</body>
</html>

相关阅读:
Python 异常处理
 Python 持久存储
 Python 用户登录验证（类的继承）
Python 类的继承/覆盖
 Python 类与对象变量
 NSNotificationCenter
编译错误：expected specifierqualifierlist before ‘class'
NSTimer
如何获取应用程序委托对象
 如何从iPhone启动AppStore
原文地址：https://www.cnblogs.com/kentyouyou/p/3729723.html