jQuery 如何儲存，擷取和刪除 Cookies

jQuery.cookie = function(name, value, options) {    if (typeof value != 'undefined') {        options = options || {};        if (value === null) {            value = '';            options = $.extend({}, options);            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();        }        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 {            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]);                if (cookie.substring(0, name.length + 1) == (name + '=')) {                    cookieValue = decodeURIComponent(cookie.substring(name.length + 1));                    break;                }            }        }        return cookieValue;    }};

然後通過下面方法使用：

$(document).ready(function() {    $('#write_cokies').click(function(){        $.cookie('name', 'test',{expires: 7});                      });    $('#read_ookies').click(function(){        var test = $.cookie('name');        alert (test);    });    $('#delete_cookies').click(function(){        $.cookie('name', null);                                  });});