说明：  1、 设计一个程序，使得能够获取本机安装的以太网卡的物理地址。 2、 设计一个简单的应用程序，使得该程序只能在装有指定地址网卡的微机上运行。
(1, a design that allows access to the installation of the Ethernet card physical address. 2, the design of a simple application that allows the procedure only in designated address card with the computer running.)