1,設置cookie
function setCookie(cname,cvalue,exdays) //cookie名字,值,過期時間(單位:天)
{
var d = new Date();
d.setTime(d.getTime()+(exdays*24*60*60*1000)); //去掉24,則是小時
var expires = "expires="+d.toGMTString();
var path="/"; //默認存放路徑
document.cookie = cname + "=" + cvalue + "; " + expires+";"+ path;
}
2,獲取cookie
function getCookie(cname)
{
var name = cname + "=";
var ca = document.cookie.split(';');
for(var i=0; i<ca.length; i++)
{
var c = ca[i].trim();
if (c.indexOf(name)==0) return c.substring(name.length,c.length);
}
return "";
}
3,刪除cookie主要是設置cookie過期時間
//調用上述方法就行,設置過期時間爲負數即可
eq: setCookie(cname,"",-1) //cname cookie名稱