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Js读写cookie实例
统计访问次数
<html><head> <meta http-equiv="Content-Type" content="text/html; charset=gb2312"> <title>New Page 5</title> <meta name="GENERATOR" content="Microsoft FrontPage 3.0"> <script language="JavaScript"> <!-- var caution = false 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 exceeds 4KB and will be cut!")) document.cookie = curCookie } 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)) } 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" } } 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() + 730 * 24 * 60 * 60 * 1000) var visits = getCookie("counter") if (!visits) visits = 1 else visits = parseInt(visits) + 1 setCookie("counter", visits, now) document.write("<font size=6 color=red>欢迎您，您是第：" + visits + " 个访问该站点的访客") // --> </script></head><body> <p align="right"> </p></body></html>
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