public void Nhap()
{
Console.Write("Nhap so hoc sinh: ");
shs = int.Parse(Console.ReadLine());
dshs = new HocSinh[shs];
for (int i = 0; i < shs; i++)
{
dshs[i] = new HocSinh();
dshs[i].Nhap();
}
}
private void btnThem_Click(object sender, EventArgs e)
{
string hoTen = txtHoTen.Text;
string gioiTinh = "Nam";
if (chkNu.Checked)
{
gioiTinh = "Nữ";
}
double toan = double.Parse(txtToan.Text);
double van = double.Parse(txtVan.Text);
double ngoaiNgu = double.Parse(txtNgoaiNgu.Text);
HocSinh hs1 = new HocSinh(hoTen, gioiTinh, toan, van, ngoaiNgu);
dsHocSinh.Add(hs1);
lbCount.Text = dsHocSinh.Count.ToString();
}