using System;

public class Program

{

struct thongTinThietBi

{

public string maThietBi; public string tenThietBi; public double giaThietBi; public int namNhapThietBi;

public string moTaThietBi;

}

public static void Main()

{

thongTinThietBi[] thietBi; int soThietBi;

int chonChucNang=0;

Console.Write("So thiet bi can quan ly:"); soThietBi = int.Parse(Console.ReadLine()); thietBi = new thongTinThietBi[soThietBi];

do

{

taoMenu();

Console.Write("Chon Chuc Nang:"); chonChucNang= int.Parse(Console.ReadLine()); Console.Clear(); switch (chonChucNang)

{

case 1: themThietBi(thietBi,soThietBi); break; case 2: xoaThietBi(thietBi,soThietBi); break; case 3: timThietBi(thietBi,soThietBi); break; case 4: sapXepThietBi(thietBi,soThietBi); break; case 5: hienthiThietBiCu(thietBi,soThietBi); break; case 6: show_all(thietBi,soThietBi); break; case 10: Console.WriteLine("Cam On Ban Da Su Dung Chuong Trinh");break;

default: Console.WriteLine("Chưa xư lý");break;

}

}while (chonChucNang!=10);

}

static void taoMenu()

{

Console.WriteLine("\n***CHUC NANG CHUONG TRINH*** \n");

Console.WriteLine("1. Them Thiet Bi");

Console.WriteLine("2. Xoa Thiet Bi");

Console.WriteLine("3. Tim Thiet Bi Theo Ma");

Console.WriteLine("4. Sap Xep Thiet Bi Theo Chieu Tang Gia");

Console.WriteLine("5. Hien Thi Thiet Bi Qua 1 Nam");

Console.WriteLine("6. Hien thi toan bo thiet bi");

Console.WriteLine("10. Thoat Chuong Trinh");

Console.WriteLine("\n*************");

}

static void themThietBi(thongTinThietBi[] thietBi,int soThietBi)

{

thongTinThietBi tb;

//tao thong tin mot thiet bi

Console.WriteLine("***Them thiet bi moi*** \n"); Console.Write("Nhap ma thiet bi:"); tb.maThietBi = Console.ReadLine();

Console.Write("Nhap ten thiet bi:");

tb.tenThietBi = Console.ReadLine(); Console.Write("Nhap gia thiet bi:"); tb.giaThietBi= double.Parse(Console.ReadLine().ToString()); Console.Write("Nhap nam thiet bi:"); tb.namNhapThietBi =int.Parse(Console.ReadLine()); Console.Write("Nhap mo ta thiet bi:"); tb.moTaThietBi = Console.ReadLine();

// them thiet bi

    bool themduoc=false;

for (int i=0;i< soThietBi;i++)

{

if (object.Equals(thietBi[i].maThietBi,null)==true)

{

thietBi[i]=tb;

themduoc=true;

break;

} 

}

if (themduoc==true)

Console.WriteLine("Da them thanh cong \n");

else

Console.WriteLine("Het vung luu tru");

}

static void xoaThietBi(thongTinThietBi[] thietBi,int soThietBi)

{

string maXoa; bool xoaduoc=false;

Console.WriteLine("***Xoa thiet bi moi*** \n"); Console.Write("Nhap ma can xoa:"); maXoa = Console.ReadLine();

for (int i=0;i<soThietBi;i++)

{

if (object.Equals(thietBi[i].maThietBi,null)==true)

break; else

{

if (thietBi[i].maThietBi.Equals(maXoa)==true)

{

thongTinThietBi[] t=new thongTinThietBi[1];

for (int j=i;j<soThietBi-1;j++)

{

thietBi[j]=thietBi[j+1];

thietBi[j+1]=t[0];

}

xoaduoc=true;

break;

}

}

}

if (xoaduoc)

Console.WriteLine("Da xoa duoc");

else

Console.WriteLine("Khong tim thay de xoa");

}

static void timThietBi(thongTinThietBi[] thietBi,int soThietBi)

{

string matim; bool timduoc=false;

Console.WriteLine("***Tim thiet bi theo ma*** \n"); Console.Write("Nhap ma can tim:"); matim = Console.ReadLine();

int i;

for (i=0;i<soThietBi;i++)

{

if (object.Equals(thietBi[i].maThietBi,null)==true)

break; else

{

if (thietBi[i].maThietBi.Equals(matim)==true)

{

timduoc=true;

break;

}

}

}

if (timduoc)

{

Console.WriteLine("Da tim thay thiet bi voi thong tin");

Console.WriteLine("Nhap ma thiet bi:{0}",thietBi[i].maThietBi);

Console.WriteLine("Nhap ten thiet bi:{0}",thietBi[i].tenThietBi);

Console.WriteLine("Nhap gia thiet bi:{0}",thietBi[i].giaThietBi);

Console.WriteLine("Nhap nam thiet bi:{0}",thietBi[i].namNhapThietBi);

Console.WriteLine("Nhap mo ta thiet bi:{0}",thietBi[i].moTaThietBi);

}

else

Console.WriteLine("Khong tim thay thiet bi voi ma:{0}",matim);

}

static void sapXepThietBi(thongTinThietBi[] thietBi,int soThietBi)

{

for (int i=0;i<soThietBi-1;i++) for (int j=i;j<soThietBi;j++)

{

thongTinThietBi tam;

if (thietBi[i].giaThietBi > thietBi[j].giaThietBi)

{

tam = thietBi[i]; thietBi[i]=thietBi[j];

    thietBi[j]  =tam;

}

}

}

static void hienthiThietBiCu(thongTinThietBi[] thietBi,int soThietBi)

{

int namHienTai = DateTime.Now.Year;

Console.WriteLine("*** Toan bo thiet bi qua 01 nam ke tu ngay nhap kho***\n");

for (int i=0;i<soThietBi;i++)

{

if (object.Equals(thietBi[i].maThietBi,null)!=true)

{

if ((thietBi[i].namNhapThietBi + 1)<namHienTai)

{

Console.WriteLine("Nhap ma thiet bi:{0}",thietBi[i].maThietBi);

Console.WriteLine("Nhap ten thiet bi:{0}",thietBi[i].tenThietBi);

Console.WriteLine("Nhap gia thiet bi:{0}",thietBi[i].giaThietBi);

Console.WriteLine("Nhap nam thiet bi:{0}",thietBi[i].namNhapThietBi);

Console.WriteLine("Nhap mo ta thiet bi:{0}",thietBi[i].moTaThietBi); Console.WriteLine();

}

}

else

break;

}

}

static void show_all(thongTinThietBi[] thietBi,int soThietBi)

{

Console.WriteLine("*** Toan bo thiet bi dang quan ly***\n");

for (int i=0;i<soThietBi;i++)

{

if (object.Equals(thietBi[i].maThietBi,null)!=true)

{

Console.WriteLine("Nhap ma thiet bi:{0}",thietBi[i].maThietBi);

Console.WriteLine("Nhap ten thiet bi:{0}",thietBi[i].tenThietBi);

Console.WriteLine("Nhap gia thiet bi:{0}",thietBi[i].giaThietBi);

Console.WriteLine("Nhap nam thiet bi:{0}",thietBi[i].namNhapThietBi);

Console.WriteLine("Nhap mo ta thiet bi:{0}",thietBi[i].moTaThietBi); Console.WriteLine();

}

else

break;

}

Console.WriteLine("\n******\n");

}

}

​