说明：  本研 究 从 无纸记录仪的发展现状及趋势入手，首先详细阐述了J2ME平台的 特点及其在嵌入式设备上的应用现状、优势和不足，为J2ME在无纸记录仪人机 界面设计中的应用提供了依据和准备
(Th is s tudy begins from development status and trend of paperless recorder. Firstly introduces characteristics of J2ME platform and its application status, advantages and disadvantages detailedly,this builds basis of applying J2ME on HMI designing of paplerless recorder)