该程序采用可视化的面向对象语言Delphi采用多线程技术实现，其中定义了六个类，电梯TElevator、乘客Tperson、楼层Tfloor、系统TsystemControl、电梯运行线程TrunThread、系统监控TsystemMonitor；每条线程动态监控每个电梯的运行情况，以电梯为主要对象，系统以每秒的事件触发每个线程对象的动作。-The program visualization using object-oriented language Delphi Multi-thread technology, including the definition of six categories, Elevator TElevator, passengers Tperson, floors Tfloor, system TsystemControl, run the thread lift TrunThread, System Monitoring TsystemMonitor　each threaded dynamic monitoring of the operation of each lift to lift as the main object, the system events per second for each thread object trigger action.