📄 14.17 同一用户的来访统计.htm
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<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
<title>无标题页</title>
<script language="JavaScript">
var caution = false;
//将用户的访问信息保存在cookie中
function setCookie(name, value, expires, path, domain, secure)
{
var curCookie = name + "=" + escape(value) +
((expires) ? "; expires=" + expires.toGMTString() : "") +
((path) ? "; path=" + path : "") +
((domain) ? "; domain=" + domain : "") +
((secure) ? "; secure" : "")
if (!caution || (name + "=" + escape(value)).length <= 4000)
document.cookie = curCookie
else
if (confirm("COOKIE超过4kb的部分将会丢失!"))
document.cookie = curCookie
}
//根据COOKIE名获取保存在cookie中的数据
function getCookie(name)
{
var prefix = name + "="
var cookieStartIndex = document.cookie.indexOf(prefix)
if (cookieStartIndex ==-1)
return null
var cookieEndIndex = document.cookie.indexOf(";", cookieStartIndex + prefix.length)
if (cookieEndIndex == -1)
cookieEndIndex = document.cookie.length
return unescape(document.cookie.substring(cookieStartIndex + prefix.length, cookieEndIndex))
}
//删除cookie信息
function deleteCookie(name, path, domain)
{
if (getCookie(name)) {
document.cookie = name + "=" +
((path) ? "; path=" + path : "") +
((domain) ? "; domain=" + domain : "") +
"; expires=Thu, 01-Jan-70 00:00:01 GMT" }
}
//计算并显示访问次数
function fixDate(date)
{
var base = new Date(0);
var skew = base.getTime();
if (skew > 0)
date.setTime(date.getTime() - skew)
}
var now = new Date();
fixDate(now);
now.setTime(now.getTime() + 365 * 24 * 60 * 60 * 1000);
var accesses= getCookie("counter");
if (!accesses)
accesses=1 ;
else
accesses= parseInt(accesses) + 1;
setCookie("counter", accesses, now) ;
document.write("您好,谢谢您的您的第" + accesses+ "次光临！") ;
</script>
</head>
<body>
</body>
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