int n; //so HS
//StreamWriter fw = File.CreateText("TKhocsinh.txt");
#region Doc Du lieu tu tep hocsinh.txt va day vao danh sach moc noi don ds; Hien thi
public void doctep()
{
StreamReader fr = File.OpenText("hocsinh.txt");
ds = null; n = 0;
Nodehs tg;
string s;
string[] con; //cac truong DL
s = fr.ReadLine(); //doc dong dau=> duoc ban ghi dau tien
if (s != null)
{
int d = 0;//d so truong DL, d=so dau #+1
for (int i = 0; i < s.Length; i++)
{
if (s[i] == '#')
{
d++;
}
}
con = new string[d + 1];
while (s != null)//lan luot doc het tep
{
if (s.Length > 0)
{
con = s.Split('#');
tg = new Nodehs(); tg.hs = new HocSinh();
tg.hs.mahs = int.Parse(con[0]);
tg.hs.hoten = con[1];
tg.hs.gioitinh = con[2];
tg.hs.namsinh = DateTime.Parse(con[3]);
tg.hs.email = con[4];
tg.hs.dtb = double.Parse(con[5]);
tg.hs.malop = con[6];
//them TT SV vua doc tu tep vao DS SV ds
n++;
if (ds == null)
{
ds = tg;
}
else
{
tg.link = ds;
ds = tg;
}
s = fr.ReadLine();
}
}
}
else
{
Console.WriteLine("tep rong!!!");
}
Console.WriteLine("Du lieu vua doc duoc tu tep HOCSINH.TXT nhu sau:");
hienthi();
fr.Close();
}
public void hoanvi(Nodehs p, Nodehs q)
{
Nodehs tg = new Nodehs();
tg.hs = p.hs;
p.hs = q.hs;
q.hs = tg.hs;
}
//Ghi them thong tin vao cuoi tep
public void ghitep(Nodehs tg)
{
StreamWriter fw = File.AppendText("HocSinh.txt");
fw.WriteLine();
fw.Write("{0}#{1}#{2}#{3}#{4}#{5}#{6}", tg.hs.mahs, tg.hs.hoten, tg.hs.gioitinh, tg.hs.namsinh.ToString("dd/MM/yyyy"), tg.hs.email, tg.hs.dtb, tg.hs.malop);
fw.Close();
}
public void SearchTen(string ten)
{
Nodehs tg = ds;
while (tg != null)
{
if (tg.hs.hoten.IndexOf(ten) >= 0)
{
tg.hs.hienthi(tg.hs);
}
tg = tg.link;
}
}
public void SearchMa(int ma)
{
Nodehs tg = ds;
while (tg != null)
{
if (tg.hs.mahs == ma)
{
tg.hs.hienthi(tg.hs); break;
}
tg = tg.link;
}
}
public void ThongkeTyLe()
{
StreamWriter ftk;
if (File.Exists("ThongkeTyLe.txt"))
{
ftk = File.AppendText("ThongkeTyLE.txt");
}
else
{
ftk = File.CreateText("ThongkeTyLE.txt");
}
int dg, dk, dtb, dy;
dg = dk = dtb = dy = 0;
Nodehs tg = this.ds;
while (tg.link != null)
{
if (tg.hs.dtb >= 8)
{
dg++;
}
else if (tg.hs.dtb >= 7)
{
dk++;
}
else if (tg.hs.dtb >= 5)
{
dtb++;
}
else
{
dy++;
}
tg = tg.link;
}
Console.WriteLine("Ty le Gioi (8..10) : {0} / {1} ", dg, this.n);
Console.WriteLine("Ty le Kha (7..8) : {0} / {1} ", dk, this.n);
Console.WriteLine("Ty le TrungBinh(5..7): {0} / {1} ", dtb, this.n);
Console.WriteLine("Ty le Yeu (<5) : {0} / {1} ", dy, this.n);
DateTime dt = DateTime.Now;
ftk.WriteLine("Thoi diem thong ke:" + dt.ToString("dd/MM/yyyy"));
ftk.WriteLine("Ty le Gioi (8..10) : {0} / {1} ", dg, this.n);
ftk.WriteLine("Ty le Kha (7..8) : {0} / {1} ", dk, this.n);
ftk.WriteLine("Ty le TrungBinh(5..7): {0} / {1} ", dtb, this.n);
ftk.WriteLine("Ty le Yeu (<5) : {0} / {1} ", dy, this.n);
ftk.Close();
}
public void hienthi()
{
Nodehs tg = new Nodehs(); tg = this.ds;
Console.WriteLine("MaHS\tHoTen\tGioiTinh\tNamSinh\tEmail\tDTB\tMaLop");
if (tg != null)
{
while (tg != null)
{
Console.WriteLine("{0}\t{1}\t{2}\t{3}\t{4}\t{5}\t{6}", tg.hs.mahs, tg.hs.hoten, tg.hs.gioitinh, tg.hs.namsinh.ToString("dd/MM/yyyy"), tg.hs.email, tg.hs.dtb, tg.hs.malop);
//tg.hs.hienthi(tg.hs);
tg = tg.link;
}
}
else
{
Console.WriteLine("Danh sách trong");
}
}
public void SortDiem()
{
Nodehs i, j; i = new Nodehs(); j = new Nodehs();
i = this.ds; j = this.ds.link;
if (!(i.link == null || i.link.link == null))
{
while (i.link.link != null)
{
j = i.link;
while (j.link != null)
{
if (i.hs.dtb < j.hs.dtb)
{
hoanvi(i, j);
}
j = j.link;
}
i = i.link;
}
}
hienthi();
}
public void Insert()
{
Nodehs tg = new Nodehs();
tg.hs = new HocSinh(); tg.link = null;
//??Kiem tra ma lop da co chua? Neu chua=> bao loi; neu co: 1 ghi them SV vao tep hocsinh.txt; cap nhat siso tep Lop.txt?
//TT HS hop le thi them vao DS HS va ghi vao tep
Nodehs tghs = new Nodehs();
danhsachlop dsl = new danhsachlop(); dsl.doctep();
NodeL tgl = new NodeL();
int mahs; string malop;
bool ok1;
bool ok2;//SV có mã lớp chưa có
do
{
ok1 = true;
Console.Write("Nhap Ma hoc sinh: ");
mahs = int.Parse(Console.ReadLine());
tghs = this.ds;
while (tghs != null)//XL
{
if (tghs.hs.mahs == mahs)
{
ok1 = false;
}
tghs = tghs.link;
}
if (!ok1)
{
Console.WriteLine("DL ko hop le: Ma HS da co! Moi nhap lai");
}
} while (!ok1);
tg.hs.mahs = mahs;
tg.hs.nhap1();
do
{
ok2 = false;
Console.Write("Nhap ma lop: ");
malop = Console.ReadLine();
tgl = dsl.ds;
while (tgl != null)
{
if (string.Compare(tgl.L.malop, malop) == 0)
{
ok2 = true; break;
}
tgl = tgl.link;
}
if (!ok2)
{
Console.WriteLine("DL ko hop le: Ma lop chua co! Moi nhap lai");
}
} while (!ok2);//XL
tg.hs.malop = String.Copy(malop);
ghitep(tg);
//Cap nhat si so tep Lop.txt
tg.link = ds;
ds = tg;
}
int n; //so HS
//StreamWriter fw = File.CreateText("TKhocsinh.txt");
#region Doc Du lieu tu tep hocsinh.txt va day vao danh sach moc noi don ds; Hien thi
public void doctep()
{
StreamReader fr = File.OpenText("hocsinh.txt");
ds = null; n = 0;
Nodehs tg;
string s;
string[] con; //cac truong DL
s = fr.ReadLine(); //doc dong dau=> duoc ban ghi dau tien
if (s != null)
{
int d = 0;//d so truong DL, d=so dau #+1
for (int i = 0; i < s.Length; i++)
{
if (s[i] == '#')
{
d++;
}
}
con = new string[d + 1];
while (s != null)//lan luot doc het tep
{
if (s.Length > 0)
{
con = s.Split('#');
tg = new Nodehs(); tg.hs = new HocSinh();
tg.hs.mahs = int.Parse(con[0]);
tg.hs.hoten = con[1];
tg.hs.gioitinh = con[2];
//Xử lý chuoi thoi gian
//tg.hs.namsinh = DateTime.Parse(con[3]);
//string dt = string.Copy(con[3]);
// Console.WriteLine(con[3]);
string[] tmp = con[3].Split('/'); //Tach xau thoi gian thanh => ngay thang nam
DateTime dt = new DateTime(int.Parse(tmp[2]), int.Parse(tmp[1]), int.Parse(tmp[0])); //khoi tao doi tuong dt
//Console.WriteLine(dt.ToString("dd/MM/yyyy"));//ghi du lieu ngay thang ra man hinh
tg.hs.NamSinh = dt; //Lenh sai ko nhan duoc DL: tg.hs.namsinh = dt;
//Console.WriteLine(tg.hs.namsinh.ToString("DD/MM/yyyy"));//ghi du lieu ngay thang ra man hinh theo dinh dang
tg.hs.email = con[4];
tg.hs.dtb = double.Parse(con[5]);
tg.hs.malop = con[6];
//them TT SV vua doc tu tep vao DS SV ds
n++;
if (ds == null)
{
ds = tg;
}
else
{
tg.link = ds;
ds = tg;
}
s = fr.ReadLine();
}
}
}
else
{
Console.WriteLine("tep rong!!!");
}
Console.WriteLine("Du lieu vua doc duoc tu tep HOCSINH.TXT nhu sau:");
hienthi();
fr.Close();
}
