<html>
<head>
<title></title>
</head>
<body>
</body>
<script type="text/javascript">
//cname 名字
//cvalue 值
//exdays 时间 0.01大概25分钟
function setCookie(cname, cvalue, exdays) {
var d = new Date();
d.setTime(d.getTime() + (exdays * 24 * 60 * 60 * 1000));
var expires = "expires=" + d.toUTCString();
document.cookie = cname + "=" + cvalue + "; " + expires+"; path=/" 这个很重要代表在那个层级下可以访问cookie
console.log(d)
}
//获取cookie
function getCookie(cname) {
var name = cname + "=";
var ca = document.cookie.split(';');
for(var i = 0; i < ca.length; i++) {
var c = ca[i];
while(c.charAt(0) == ' ') c = c.substring(1);
if(c.indexOf(name) != -1) return c.substring(name.length, c.length);
}
return "";
}
//删除 cookie
function clearCookie(name) {
setCookie(name, "", -1);
}
</script>
</html>
