AJAX，或者说是异步Javascr ipt和XML，描述了一种使用混合了HTML(或XHTML)和层叠样式表作为表达信息,来创建交互式的Web应用的开发技术 文档对象模型（DOM），Javascr ipt,动态地显示和与表达信息进行交互 并且，XMLHttpRequest对象与Web服务器异步地交换和处理数据。-AJAX, or asynchronous Javascr ipt and XML, describes a use of a mixture of HTML (or XHTML) and Cascading Style Sheets as the expression of information, to create interactive Web application development technologies　Document Object Model (DOM), Javascr ipt dynamically display and interact with the expression of information　and, XMLHttpRequest object and the Web server asynchronous data exchange and processing.