(function (window, undefined) {             //构建jQuery对象             var document = window.document,                 navigator = window.navigator,                 location = window.location;             var jQuery = (function () {                 var jQuery = function (selector, context) {                     return new jQuery.fn.init(selector, context, rootjQuery);                 },                 _jQuery = window.jQuery;                 //............................                 //............................                                  return jQuery; //981行             })();             //工具方法:Utilities;我在jQuery源码中没有发现是哪一块,如果有发现的.可以告诉我一下             //回调函数列表 Callbacks             //异步队列 Deferred             //浏览器功能测试 Support             //数据缓存  Cache             //属性操作  Attributes             //队列 Queue             //事件系统 Event             //选择器 Sizzle             //Dom遍历 Traversing             //Dom操作 Manipulation             //样式操作 CSS             //异步请求 Ajax             //动画 Effects             //坐标 Offset. 尺寸Dimensions             window.jQuery = window.$ = jQuery;         })(window);