js对cookie的写入，读取及删除方法

这里的js对cookie的写入，读取及删除方法，都很实用: /* name:cookie 名 value:cookie 值 */ //写入cookie function SetCookie(name,value) { var Days = 30; //此 cookie 将被保存 30 天 var exp = new Date(); exp.setTime(exp.getTime() + Days*24*60*60*1000); document.cookie = name + "="+ escape (value) + ";expires=" + exp.toGMTString(); }

///删除cookie function delCookie(name) { var exp = new Date(); exp.setTime(exp.getTime() - 1); var cval=getCookie(name); if(cval!=null) document.cookie= name + "="+cval+";expires="+exp.toGMTString(); }

//读取cookie function getCookie(name) { var arr = document.cookie.match(new RegExp("(^| )"+name+"=([^;]*)(;|$)")); if(arr != null) return unescape(arr[2]); return null; }