代码： 复制代码 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 = $.extend({}, options); // clone object since it's unexpected behavior if the expired property were changed 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 } // NOTE Needed to parenthesize options.path and options.domain // in the following expressions, otherwise they evaluate to undefined // in the packed version for some reason... 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; } }; 使用方法 jQuery操作cookie的插件,大概的使用方法如下 $.cookie('the_cookie'); //读取Cookie值 $.cookie('the_cookie', 'the_value'); //设置cookie的值 $.cookie('the_cookie', 'the_value', {expires: 7, path: '/', domain: 'jquery.com', secure: true});//新建一个cookie 包括有效期 路径 域名等 $.cookie('the_cookie', 'the_value'); //新建cookie $.cookie('the_cookie', null); //删除一个cookie 设置一个名称为blog，值为css9.net的cookie: $.cookie("blog", "css9.net"); 设置一个名称为blog，值为css9.net的cookie，同时设置过期时间（expires属性）为7天： $.cookie("blog", "css9.net", { expires: 7 }); 设置一个名称为blog，值为css9.net的cookie，设置过期时间（expires属性）为7天，同时设置cookie的path属性为”/admin” $.cookie("blog", "css9.net", { path: '/admin', expires: 7 }); 读取Cookie： 读取名称为blog的cookie值： alert( $.cookie("blog") ); 删除cookie： $.cookie("example", null);

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