基于jquery的cookie的用法

example $.cookie('name', ‘value');
设置cookie的值，把name变量的值设为value
example $.cookie('name', ‘value', {expires: 7, path: ‘/', domain: ‘jquery.com', secure: true});
新建一个cookie 包括有效期 路径 域名等
example $.cookie('name', ‘value');
新建cookie
example $.cookie('name', null);
删除一个cookie

var account= $.cookie('name');
取一个cookie(name)值给myvar

代码如下

jQuery.cookie = function(name, value, options) { 
if (typeof value != 'undefined') { // name and value given, set cookie 
options = options || {}; 
if (value === null) { 
value = ''; 
options.expires = -1; 
} 
var expires = ''; 
if (options.expires && (typeof options.expires == 'number' || options.expires.toUTCString)) { 
var date; 
if (typeof options.expires == 'number') { 
date = new Date(); 
date.setTime(date.getTime() + (options.expires * 24 * 60 * 60 * 1000)); 
} else { 
date = options.expires; 
} 
expires = '; expires=' + date.toUTCString(); // use expires attribute, max-age is not supported by IE 
} 
var path = options.path ? '; path=' + options.path : ''; 
var domain = options.domain ? '; domain=' + options.domain : ''; 
var secure = options.secure ? '; secure' : ''; 
document.cookie = [name, '=', encodeURIComponent(value), expires, path, domain, secure].join(''); 
} else { // only name given, get cookie 
var cookieValue = null; 
if (document.cookie && document.cookie != '') { 
var cookies = document.cookie.split(';'); 
for (var i = 0; i < cookies.length; i++) { 
var cookie = jQuery.trim(cookies[i]); 
// Does this cookie string begin with the name we want? 
if (cookie.substring(0, name.length + 1) == (name + '=')) { 
cookieValue = decodeURIComponent(cookie.substring(name.length + 1)); 
break; 
} 
} 
} 
return cookieValue; 
} 
};

然后看了下Discuz!中对cookie的操作方法
如下,发现少了个遍历用;分割的数组的处理

function getcookie(name) { 
var cookie_start = document.cookie.indexOf(name); 
var cookie_end = document.cookie.indexOf(";", cookie_start); 
return cookie_start == -1 ? '' : unescape(document.cookie.substring(cookie_start + name.length + 1, (cookie_end > cookie_start ? cookie_end : document.cookie.length))); 
} 
function setcookie(cookieName, cookieValue, seconds, path, domain, secure) { 
var expires = new Date(); 
expires.setTime(expires.getTime() + seconds); 
document.cookie = escape(cookieName) + '=' + escape(cookieValue) 
+ (expires ? '; expires=' + expires.toGMTString() : '') 
+ (path ? '; path=' + path : '/') 
+ (domain ? '; domain=' + domain : '') 
+ (secure ? '; secure' : ''); 
}