//program继承了IStudent接口

            Program pro = new Program();               //实例化Program类对象
            IStudent iStu = pro;           //使用派生类对象实例化接口ImyInterface
            iStu.StudentCode = "TM";                        //为派生类中的ID属性赋值
            iStu.StudentName = "C#编程词典";     //为派生类中的Name属性赋值
            iStu.ShowInfoOfStudent();                       //调用派生类中方法显示定义的属性值

            Program pro1 = new Program();
            //IStudent iStu1 = pro1;
            pro1.StudentCode = "08160110";
            pro1.StudentName = "Uncle Drew";
            pro1.ShowInfoOfStudent();