class Program
    {
        static void Main(string[] args)
        {
            Student s1 = new Student();
            s1.Display();
            Student s2 = new Student(123);
            s2.Display();
            s1.Display();
            Console.Read();
 
        }
    }
    public class Student
    {
        int studentNumber;
        static int count;
        public Student() {count++; }
        public Student(int studentNumber)
        {
            this.studentNumber = studentNumber;
            count++;
        }
        public void Display()
        {
          Console.WriteLine("我学号是{0},当前已经创建{1}个学生", studentNumber, count);
        }
    }
以上程序的运行结果是_____________________。（可能有多行）