运用面向对象的建模技术ＯＯＭＴ分析了因特网信息自动提取与筛选系统的组成和功能，并介绍了该系统的实现原理、使用要求和运行环境，最后对该系统涉及的一些技术与国外情况进行了比较。 Using the object-oriented modeling technology OOMT, this paper analyzes the composition and function of the Internet information automatic extraction and screening system, and introduces the implementation principle, requirements and operating environment of the system. Finally, some technologies and foreign situations involved in the system are carried out Compare