1.　　网上图书馆系统建模及实现

2.　　对一组电梯建模并实现

在一座10层高的宾馆的大厅内，有4部由一个控制器控制电梯。乘客随时在各层选择要去的楼层。要求：

1、设计一个电梯算法，最优地满足乘客的要求（候时最小）。

2、区分电梯的状态，如空运行、载人运行、超重、当前有故障等（可人工设置）。

3、在电梯全部无人乘做时，电梯要按一定条件（可人工设置）分布在各层。

4、保存一个星期内的各电梯的运行记录。

-1. Online Library System Modeling and Implementation 2. On a set of elevator model and implement in a 10-storey hotel in the hall, there are four elevators controlled by a controller. Passenger levels at any time choose to go to the floor. Requirements: 1, design an elevator algorithm, best meet the requirements of passengers (minimum waiting time). 2, lift the state of distinction, such as the air running, manned operation, overweight, current malfunction, etc. (can be manually set). 3, no ride in the elevator all to do, the elevator according to certain conditions (can be manually set) distributed in layers. 4, save a week of each elevator run record.