cookie 的 写入,读取, 删除
页面跳转,cookie存储参数
1,设置cookie
function
setCookie(name,value)
{
var
Days = 30;
var
exp =
new
Date();
exp.setTime(exp.getTime() + Days*24*60*60*1000);
document.cookie = name +
"="
+ escape (value) +
";expires="
+ exp.toGMTString();
}
//如果需要设定自定义过期时间
function setCookie(name, value, time) {
var strsec = getsec(time);
var exp = new Date();
exp.setTime(exp.getTime() + strsec * 1);
document.cookie = name + "=" + escape(value) + ";expires=" + exp.toGMTString();
}
function getsec(str) {
var str1 = str.substring(1, str.length) * 1;
var str2 = str.substring(0, 1);
if (str2 == "s") {
return str1 * 1000;
} else if (str2 == "h") {
return str1 * 60 * 60 * 1000;
} else if (str2 == "d") {
return str1 * 24 * 60 * 60 * 1000;
}
}
//这是有设定过期时间的使用示例:
//s20是代表20秒
//h是指小时,如12小时则是:h12
//d是天数,30天则:d30
//获取cookie
function getCookie(name) {
var arr, reg = new RegExp("(^| )" + name + "=([^;]*)(;|$)");
if (arr = document.cookie.match(reg))
return unescape(arr[2]);
else
return null;
};
//删除cookie
// delCookie("planCookie");
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();
}
}
部分摘自脚本之家