<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
</head>
<body>
</body>
</html>
<script type="text/javascript">
var date = new Date();
date.setDate(date.getDate() + 5);
//alert(date);
/*
document.cookie = "姓名=张三;expires=" + date + ";path=/";
document.cookie = "url=www.1000phone.com;expires=" + date + ";path=/";
document.cookie = "[email protected];expires=" + date + ";path=/";
alert(document.cookie);
*/
//封装一个创建cookie的方法
function createCookie(key,value,expires,domain,secure){
var cookieText = encodeURIComponent(key) + "=" + encodeURIComponent(value) + ";path=/";
if(!isNaN(expires)){
if(typeof expires == "number" && expires > 0){
var date = new Date();
date.setDate(date.getDate() + expires);
cookieText += ";expires=" + date;
}
}
if(domain){
cookieText += ";domain=" + domain;
}
if(secure){
cookieText += ";secure";
}
document.cookie = cookieText;
}
createCookie("姓名","张三",10);
createCookie("url","www.1000phone.com",10);
createCookie("email","[email protected]",10);
//alert(document.cookie);
//封装一个获取cookie的方法
//方法一： //%E5%A7%93%E5%90%8D=%E5%BC%A0%E4%B8%89; url=www.1000phone.com; email=zhangsan%401000phone.com
/*
* 姓名= 0 张三
* url= 39 www.1000phone.com
* email [email protected]
*
* substring(start,end)
* slice(start,end)
* substr(start,length)
*/
//alert(getCookieValue("email"));
function getCookie(key){
var keyText = encodeURIComponent(key) + "="
var start = document.cookie.indexOf(keyText); //找到开始位置
if(start != -1){
var end = document.cookie.indexOf(";",start); //找到结束位置
if(end == -1){
end = document.cookie.length;
}
var cookieValue = decodeURIComponent(document.cookie.substring(start + keyText.length,end));
}
return cookieValue;
}
//方法二
function getCookieValue(key){
var arr = document.cookie.split("; ");
//["%E5%A7%93%E5%90%8D=%E5%BC%A0%E4%B8%89","url=www.1000phone.com","email=zhangsan%401000phone.com"]
for(var i = 0; i < arr.length; i ++){
var list = arr[i].split("=");
//["%E5%A7%93%E5%90%8D","%E5%BC%A0%E4%B8%89"]
//["url","www.1000phone.com"]
//["email","zhangsan%401000phone.com"]
if(list[0] == encodeURIComponent(key)){
break;
return decodeURIComponent(list[1]);
}
}
}
//封装一个删除cookie的方法
function removeCookie(key){
document.cookie = key + "=;expires=" + new Date(0) + ";path=/";
}
removeCookie("url");
alert(getCookieValue("url"));
</script>
时间： 2024-07-28 13:27:48