//Phương thức
public HocSinh(HocSinh hs)
{
this.mahs = hs.mahs;
this.hoten = string.Copy(hs.hoten);
this.gioitinh = string.Copy(hs.gioitinh);
this.namsinh = hs.namsinh;
this.email = string.Copy(hs.email);
this.dtb = hs.dtb;
this.malop = string.Copy(hs.malop);
}
public void hienthi(HocSinh hs)
{
Console.WriteLine("{0}\t{1}\t{2}\t{3}\t{4}\t{5}\t{6}", hs.mahs, hs.hoten, hs.gioitinh, hs.namsinh, hs.email, hs.dtb, hs.malop);
}