define(function () {    var now = +new Date();    var util = {};         util.guid = function () {        return 'e' + now++;    };           util.noop = function () {};        var dontEnumBug = !(({ toString: 1 }).propertyIsEnumerable('toString'));        // type 子类 superType 父类    util.inherits = function (type, superType) {        var Empty = function () {};        Empty.prototype = superType.prototype;        var proto = new Empty();            var originalPrototype = type.prototype;        type.prototype = proto;            for (var key in originalPrototype) {            proto[key] = originalPrototype[key];        }        if (dontEnumBug) {            // 其实还有好多其它的，但应该不会撞上吧(╯‵□′)╯︵┻━┻            if (originalPrototype.hasOwnProperty('toString')) {                proto.toString = originalPrototype.toString;            }            if (originalPrototype.hasOwnProperty('valueOf')) {                proto.valueOf = originalPrototype.valueOf;            }        }        type.prototype.constructor = type;            return type;    };        util.parseJSON = function (text) {        if (!text) {            return undefined;        }            if (window.JSON && typeof JSON.parse === 'function') {            return JSON.parse(text);        }        else {            /* jshint evil: true */            return new Function('return (' + text + ');')();        }    };        var whitespace = /(^[\s\t\xa0\u3000]+)|([\u3000\xa0\s\t]+$)/g;        util.trim = function (source) {        return source.replace(whitespace, '');    };        return util;});