一般我們用的時候,直接寫幾個函數來完成不同的功能,像getCookie(name),setCookie(name,value),delCookie(name)。下面分別寫出來,以做筆記吧:
//設定Cookie值
function setCookie(name, value){
var expdate = new Date();
var argv = setCookie.arguments;
var argc = setCookie.arguments.length;
var expires = (argc > 2) ? argv[2] : null; //Expires – 過期時間。
var path = (argc > 3) ? argv[3] : null; //Path – 路徑。指定與cookie關聯的WEB頁.
var domain = (argc > 4) ? argv[4] : null; //Domain – 域。指定關聯的WEB服務器或域。
var secure = (argc > 5) ? argv[5] : false; //Secure – 安全。
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" : "");
}
//獲得Cookie的原始值
function getCookie(name){
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;
}
//獲得Cookie解碼後的值
function getCookieVal(offset){
var endstr = document.cookie.indexOf (";", offset);
if (endstr == -1)
endstr = document.cookie.length;
return unescape(document.cookie.substring(offset, endstr));
}