static void Main(string[] args)
{
Student stu1 = new Student("张晓虹", "女", 20, "计算机科学与技术");
Student stu2 = new Student("王宏", "男", 18, "软件工程");
Console.WriteLine("大家好，我叫{0}", stu1.disname());
Console.WriteLine("我的性别是{0}", stu1.dissex());
Console.WriteLine("我今年{0}岁了", stu1.disage());
Console.WriteLine("我学的专业是{0}", stu1.dismajor());
Console.WriteLine("大家好，我叫{0}", stu2.disname());
Console.WriteLine("我的性别是{0}", stu2.dissex());
Console.WriteLine("我今年{0}岁了", stu2.disage());
Console.WriteLine("我学的专业是{0}", stu2.dismajor());
}