/// <summary>
/// 显示研究生；
/// </summary>
/// <param name="postgraduate">研究生</param>
public static void Display(Postgraduate postgraduate)
{
WriteLine
($"研究生信息：\n" +
$"学号：{postgraduate.Number,-15}姓名：{postgraduate.Name}\n" +
$"性别：{ postgraduate.Gender,-14} 生日：{ postgraduate.BirthDate:D}\n" +
$"手机号：{postgraduate.PhoneNumber}\n" +
$"导师：{postgraduate.Supervisor.Name,-12}方向：{postgraduate.Direction}");
postgraduate.Intro();
WriteLine("\n");
}
static void Main()
{
Undergraduate boy = new Undergraduate("3210707000", "张三", Gender.MALE)
{
Class = "21信管",
Instructor = "林立" //派生类访问自身的属性；
};
Postgraduate girl = new Postgraduate("2190757001", "李四", Gender.FEMALE);
boy.Intro(); //派生类调用顶层基类的方法；
girl.Intro();
boy.Register(); //派生类调用基类的方法；
girl.Register();
girl.AssignDirection("数据可视化"); //派生类调用自身的方法；
Read();
}
static void Main()
{
Faculty msYang = new Faculty("2002010", "杨雪梅", Gender.FEMALE, "人文与管理学院");
Undergraduate boy = new Undergraduate("3210707000", "张三", Gender.MALE, "21信管");
Postgraduate girl = new Postgraduate("2190757001", "李四", Gender.FEMALE, msYang);
girl.AssignDirection("数据可视化");
ExchangeStudent newGuy = new ExchangeStudent("20200531001", "王五", Gender.MALE, "20信管", "江西中医药大学");
boy.Intro();
WriteLine();
girl.Intro();
WriteLine();
newGuy.Intro();
Read();
}