javascript cookies 設置、讀取、刪除實例代碼
2024-05-06 14:10:31
供稿：網友
剛整理了一些關于javascript cookies操作的文章，發現這篇文章也不錯，推薦大家一起參考，選擇需要的，不足的地方主要是對路徑的設置，喜歡的朋友可以結合下。
代碼如下:
<script>
function SetCookie(name,value)//兩個參數，一個是cookie的名子，一個是值
{
var Days = 30; //此 cookie 將被保存 30 天
var exp = new Date(); //new Date("December 31, 9998");
exp.setTime(exp.getTime() + Days*24*60*60*1000);
document.cookie = name + "="+ escape (value) + ";expires=" + exp.toGMTString();
}
function getCookie(name)//取cookies函數
{
var arr = document.cookie.match(new RegExp("(^| )"+name+"=([^;]*)(;|$)"));
if(arr != null) return unescape(arr[2]); return null;
}
function delCookie(name)//刪除cookie
{
var exp = new Date();
exp.setTime(exp.getTime() - 1);
var cval=getCookie(name);
if(cval!=null) document.cookie= name + "="+cval+";expires="+exp.toGMTString();
}
SetCookie ("xiaoqi", "3")
alert(getCookie('xiaoqi'));
</script>
一個非常實用的javascript讀寫Cookie函數
代碼如下:
function GetCookieVal(offset)
//獲得Cookie解碼后的值
{
var endstr = documents.cookie.indexOf (";", offset);
if (endstr == -1)
endstr = documents.cookie.length;
return unescape(documents.cookie.substring(offset, endstr));
}
function SetCookie(name, value)
//設定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 ));
documents.cookie = name + "=" + escape (value) +((expires == null) ? "" : ("; expires="+ expdate.toGMTString()))
+((path == null) ? "" : ("; path=" + path)) +((domain == null) ? "" : ("; domain=" + domain))
+((secure == true) ? "; secure" : "");
}
function DelCookie(name)
//刪除Cookie
{
var exp = new Date();
exp.setTime (exp.getTime() - 1);
var cval = GetCookie (name);
documents.cookie = name + "=" + cval + "; expires="+ exp.toGMTString();
}
function GetCookie(name)
//獲得Cookie的原始值
{
var arg = name + "=";
var alen = arg.length;
var clen = documents.cookie.length;
var i = 0;
while (i < clen)
{
var j = i + alen;
if (documents.cookie.substring(i, j) == arg)
return GetCookieVal (j);
i = documents.cookie.indexOf(" ", i) + 1;
if (i == 0) break;
}
return null;
}
代碼如下:
<SCRIPT language="javascript">
<!--
function openpopup(){
url="popup.htm"
window.open("gonggao.htm","gonggao","width=260,height=212,left=200,top=0")
}
function get_cookie(Name) {
var search = Name + "="
