static void Main(string[] args)
{
//int x = 5;
//Math.Abs(x);
//ArrayList arr = new ArrayList();
//arr.Add("Minh");
//arr.Add("ten");
//arr.Add("Quoc");
//arr.Add(6);
//arr.Add(9);
//int size = arr.Count;
//for (int i = 0; i < size; i++)
//{
// Console.Write("{0}\n", arr[i]);
//}
HocSinh hs1 = new HocSinh();
hs1.Nhap();
hs1.NgaySinh.Ngay = 20;
hs1.Xuat();
Console.ReadKey();
}
static void Main(string[] args)
{
//int x = 5;
//Math.Abs(x);
//ArrayList arr = new ArrayList();
//arr.Add("Minh");
//arr.Add("ten");
//arr.Add("Quoc");
//arr.Add(6);
//arr.Add(9);
//int size = arr.Count;
//for (int i = 0; i < size; i++)
//{
// Console.Write("{0}\n", arr[i]);
//}
HocSinh hs1 = new HocSinh();
hs1.Nhap();
hs1.NgaySinh.Ngay = 20;
hs1.Xuat();
Console.ReadKey();
}