查人人中国名人网山东财经大学财务处:如何用javascript向客户端写cookie?
来源：百度文库 编辑：查人人中国名人网 时间：2024/05/02 12:45:22
打开这个页面显示:
你是第 * 次打开的
要求:
1.用javascript编写
即:<script language="javascript">
</script>
2.把答案贴上来,别要求打击某链接打开答案
首发者你有没有搞错!
这么简单的实例你发个这样的答案上来
别想不做思考拿得分
第二位回答者差不多了
但不是弹出来,是显示在网页上,
再等几天没有人回就设你最好吧
还是比较简单的!简单的写了一下,你看你是不是要这个效果
<HTML>
<HEAD>
<script language="javascript">
function getCookie(name) {
var search;
search = name + "=";
offset = document.cookie.indexOf(search);
if (offset != -1) {
offset += search.length;
var end = document.cookie.indexOf(";", offset);
if (end == -1) end = document.cookie.length;
return unescape(document.cookie.substring(offset, end));
} else return "";
}
function setCookie(name, value) {
document.cookie = name + "=" + value + "; path=/;";
if(document.all.net)net_color();
}
function showCookie(name)
{
var str = getCookie(name);
if(str)alert("您是第"+str+"次来");
else {alert("您是初次来");str = 1;}
var new_str = str++;
setCookie(name,str);
}
</script>
</head>
<body onload="showCookie('here')">
</body>
</html>
一个非常实用的javascript读写Cookie函数
function GetCookieVal(offset)
//获得Cookie解码后的值
{
var endstr = document.cookie.indexOf (";", offset);
if (endstr == -1)
endstr = document.cookie.length;
return unescape(document.cookie.substring(offset, endstr));
}
function SetCookie(name, value)
//设定Cookie值
{
var expdate = new Date();
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;
if(expires!=null) expdate.setTime(expdate.getTime() + ( expires * 1000 ));
document.cookie = name + "=" + escape (value) +((expires == null) ? "" : ("; expires="+ expdate.toGMTString()))
+((path == null) ? "" : ("; path=" + path)) +((domain == null) ? "" : ("; domain=" + domain))
+((secure == true) ? "; secure" : "");
}
function DelCookie(name)
//删除Cookie
{
var exp = new Date();
exp.setTime (exp.getTime() - 1);
var cval = GetCookie (name);
document.cookie = name + "=" + cval + "; expires="+ exp.toGMTString();
}
function GetCookie(name)
//获得Cookie的原始值
{
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;
}