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对牵引供电培训仿真器（ＰＴＳ）的数据库系统进行了分析和设计，构造出一种灵活的面向对象数据库类体系结构，为ＰＴＳ构造了一个开放性的开发平台，起到了基础性作用。同时提出了面向对象数据库设计的一种实用方法
This paper analyzes and designs the database system of Traction Power Supply Training Simulator (PTS), constructs a kind of flexible object-oriented database class architecture and constructs an open development platform for PTS, which plays a fundamental role. Also put forward a practical method of object-oriented database design