By GokiSoft.com| 13:57 28/10/2021|
C Sharp

Bài 2: Chương trình quản lý sản phẩm - Product - Lập Trình C# - Lập Trình C Sharp

Tạo class Product gồm các thuộc tính:

-       Tên hàng hóa

-       Nhà sản xuất

-       Giá bán

+ Tạo 2 constructor cho lớp này.

+ Cài đặt hàm nhập và hiển thị.

 

Tạo class ProductMenu, khai báo hàm main và tạo menu sau:

1.    Nhập thông tin cho n sản phẩm

2.    Hiển thị thông tin vừa nhập

3.    Sắp xếp thông tin giảm dần theo giá và hiển thị

4.    Thoát.

Tags:



Phản hồi từ học viên

5

(Dựa trên đánh giá ngày hôm nay)

Hoàng Quang Huy [C1907L]
Hoàng Quang Huy

2020-07-01 13:34:12



using System;

namespace Project2
{
    class Product
    {
        public string Name { get; set; }
        public string Producer { get; set; }
        public int Price { get; set; }

        public Product(string name, string producer, int price)
        {
            Name = name;
            Producer = producer;
            Price = price;
        }

        public Product()
        {
        }

        public void Input()
        {
            Console.WriteLine("Nhập tên hàng hóa: ");
            this.Name = Console.ReadLine();
            Console.WriteLine("Nhập tên nhà sản xuất: ");
            this.Producer = Console.ReadLine();
            Console.WriteLine("Nhập giá bán: ");
            this.Price = int.Parse(Console.ReadLine());
        }

        public void Display()
        {
            Console.WriteLine("Tên hàng hóa: "+ Name);
            Console.WriteLine("Tên nhà sản xuất: "+Producer);
            Console.WriteLine("Giá bán: "+Price);
        }
    }
}
-------------------------------------------------------------------------------------
using System;
using System.Collections.Generic;
using System.Text;

namespace Project2
{
   
    class ProductMenu
    {
        static List<Product> ListProduct { get; set; }
        static void Main(string[] args)
        {
            Console.OutputEncoding = System.Text.Encoding.Unicode;
            ListProduct = new List<Product>();
            int choose;
            do
            {
                ShowMenu();
                choose = int.Parse(Console.ReadLine());
                switch (choose)
                {
                    case 1:
                        InputInfor();
                        break;
                    case 2:
                        ShowInfor();
                        break;
                    case 3:
                        SortByPrice();
                        break;
                    case 4:
                        Environment.Exit(0);
                        break;
                    default:
                        Console.WriteLine("Lựa chọn không hợp lệ!!");
                        break;
                }
            } while (choose != 4);
        }

        static void ShowMenu()
        {
            Console.WriteLine("1. Nhập thông tin cho n sản phẩm");
            Console.WriteLine("2. Hiển thị thông tin vừa nhập");
            Console.WriteLine("3. Sắp xếp thông tin giảm dần theo giá và hiển thị");
            Console.WriteLine("4. Thoát");
            Console.WriteLine("Lựa chọn của bạn: ");
        }

        static void InputInfor()
        {
            Console.WriteLine("Nhập số sản phẩm cần thêm: ");
            int n = int.Parse(Console.ReadLine());
            for (int i = 0; i < n; i++)
            {
                Product product = new Product();
                product.Input();
                ListProduct.Add(product);
            }
        }

        static void ShowInfor()
        {
            foreach (Product p in ListProduct )
            {
                p.Display();
            }
        }

        static void SortByPrice()
        {
            for (int i = 0; i < ListProduct.Count-1; i++)
            {
                for (int j = i+1; j < ListProduct.Count; j++)
                {
                    if (ListProduct[i].Price < ListProduct[j].Price)
                    {
                        Product tmp = ListProduct[i];
                        ListProduct[i] = ListProduct[j];
                        ListProduct[j] = tmp;
                    }
                }
            }
            ShowInfor();
        }
    }
}


Nguyễn Hoàng Anh [C1907L]
Nguyễn Hoàng Anh

2020-07-01 13:30:20



using ProductManager;
using System;
using System.Collections.Generic;

namespace ProducManager
{
    class Program
    {
        static void menu() {
            Console.WriteLine("1.Enter N product.");
            Console.WriteLine("2.Show product.");
            Console.WriteLine("3.Sort.");
            Console.WriteLine("4.Exit.");
        }
        static void input(List<Product> products) {
            Console.WriteLine("How many product N.");
            int n = int.Parse(Console.ReadLine());
            for (int i = 0; i< n;i++) {
                Console.WriteLine("Enter product {0} : ",(i+1));
                Product prod = new Product();
                prod.input();
                products.Add(prod);
            }
        }
        static void display(List<Product> products) {
            for (int i = 0; i < products.Count; i++) {
                products[i].display();
            }
        }
        static void sort(List<Product> products) {
            for (int i = 0; i < products.Count; i++)
            {
                for (int j = i + 1; j < products.Count; j++) {
                    if (products[i].Price > products[j].Price) {
                        Product temp = products[i];
                        products[i] = products[j];
                        products[j] = temp;
                    }
                }
            }
        }
        static void Main(string[] args)
        {
            List<Product> products = new List<Product>();
            while (true) {
                menu();
                int choice = int.Parse(Console.ReadLine());
                switch(choice){
                    case 1:
                        input(products);
                        break;
                    case 2:
                        display(products);
                        break;
                    case 3:
                        sort( products);
                        break;
                    case 4:
                        return;

                }
            }
        }
    }
}




using System;
using System.Collections.Generic;
using System.Text;

namespace ProductManager
{
    class Product
    {
        public string NameProduct{get; set;}
        public string Producer { get; set; }
        public float Price { get; set; }

        public Product(string nameProduct, string producer, float price)
        {
            NameProduct = nameProduct;
            Producer = producer;
            Price = price;
        }

        public Product()
        {
        }
        public void input() {
            Console.WriteLine("Enter product name : ");
            NameProduct = Console.ReadLine();
            Console.WriteLine("Enter producer : ");
            Producer = Console.ReadLine();
            Console.WriteLine("Enter price :");
            Price = float.Parse(Console.ReadLine());
        }
        public void display() {
            Console.WriteLine("Product name : {0} , Producer : {1} , Price : {2}",NameProduct,Producer,Price);
        }
    }

}


trung [C1907L]
trung

2020-07-01 13:29:33



using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace product
{
    class ProductMenu
    {
        static void Main(string[] args)
        {
            List<Product> ListProduct = new List<Product>();
            int choice = 0;
            do
            {
                showMenu();
                choice = int.Parse(Console.ReadLine());
                switch (choice)
                {
                    case 1:
                        Console.WriteLine("Nhap vao so N");
                        int n = int.Parse(Console.ReadLine());
                        for (int i = 0; i < n; i++)
                        {
                            Console.WriteLine("Nhap vao thong tin product thu" + (i + 1));
                            Product nProduct = new Product();
                            nProduct.Input();
                            ListProduct.Add(nProduct);
                        }
                        break;
                    case 2:
                        foreach (Product prd in ListProduct)
                        {
                            prd.Output();
                        }
                        break;
                    case 3:
                        for (int i = 0; i < ListProduct.Count - 1; i++)
                        {
                            for (int j = i + 1; j < ListProduct.Count; j++)
                            {
                                if (ListProduct[i].Price < ListProduct[j].Price)
                                {
                                    Product temp = ListProduct[i];
                                    ListProduct[i] = ListProduct[j];
                                    ListProduct[j] = temp;
                                }
                            }
                        }
                        foreach (Product prd in ListProduct)
                        {
                            prd.Output();
                        }
                        break;
                    case 4:
                        Console.WriteLine("Bye bye...");
                        return;
                    default:
                        Console.WriteLine("Invalid input");
                        break;
                }
            } while (choice != 4);
        }

        static private void showMenu()
        {
            Console.WriteLine("Nhap thong tin cho n san pham");
            Console.WriteLine("Hien thi thong tin vua nhap");
            Console.WriteLine("Sap xep thong tin giam dan theo gia va hien thi");
            Console.WriteLine("Thoat");
        }
    }
}




using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace product
{
    class Product
    {
        public string Name { get; set; }
        public string Producer { get; set; }
        public float Price { get; set; }

        public Product() { }

        public Product(string name, string producer, float price)
        {
            Name = name;
            Producer = producer;
            Price = price;
        }

        public void Input()
        {
            Console.WriteLine("Input product name");
            Name = Console.ReadLine();
            Console.WriteLine("Input producer");
            Producer = Console.ReadLine();
            Console.WriteLine("Input price");
            Price = int.Parse(Console.ReadLine());
        }

        public void Output()
        {
            Console.WriteLine("Product name: " + Name);
            Console.WriteLine("Producer: " + Producer);
            Console.WriteLine("Price: " + Price);
        }
    }
}


Ngô Quang Huy [C1907L]
Ngô Quang Huy

2020-07-01 13:20:12



using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Program
{
    class Program
    {
        static void Main(string[] args)
        {
            List<Product> listProduct = new List<Product>();
            while (true)
            {
                showMenu();
                int choose = int.Parse(Console.ReadLine());
                switch (choose)
                {
                    case 1:
                        Console.Write("N = ");
                        int n = int.Parse(Console.ReadLine());
                        for (int i= 0; i < n; i++)
                        {
                            Console.WriteLine("\nProduct "+(i+1));
                            Product prod = new Product();
                            prod.input();
                            listProduct.Add(prod);
                        }
                        break;
                    case 2:
                        foreach (Product pro in listProduct)
                        {
                            pro.output();
                        }
                        break;
                    case 3:
                        for (int i = 0; i < listProduct.Count-1; i++)
                        {
                            for (int j = i+1;j< listProduct.Count; j++)
                            {
                                if (listProduct[i].price < listProduct[j].price)
                                {
                                    Product tmp = listProduct[i];
                                    listProduct[i] = listProduct[j];
                                    listProduct[j] = tmp;
                                }
                            }
                        }
                        foreach (Product pro in listProduct)
                        {
                            pro.output();
                        }
                        break;
                    default:
                        Environment.Exit(0);
                        break;
                }
            }
        }

        static void showMenu()
        {
            Console.WriteLine("1. Insert n product");
            Console.WriteLine("2. Display product");
            Console.WriteLine("3. Sort");
            Console.WriteLine("4. Exit");
            Console.Write("Choose: ");
        }
    }
}




using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Program
{
    class Product
    {
        public string name { get; set; }
        public string manufacturer { get; set; }
        public float price{ get; set; }

        public Product()
        {

        }

        public Product(string name, string manufacturer, float price)
        {
            this.name = name;
            this.manufacturer = manufacturer;
            this.price = price;
        }

        public void input()
        {
            Console.WriteLine("Insert Name: ");
            name = Console.ReadLine();
            Console.WriteLine("Insert manufacturer: ");
            manufacturer = Console.ReadLine();
            Console.WriteLine("Insert price: ");
            price = float.Parse(Console.ReadLine());
        }

        public void output()
        {
            Console.WriteLine("name: " + name + "; "+"manufacturer: " + manufacturer + "; "+"price: " + price);
        }
    }
}


Trần Anh Quân [T1907A]
Trần Anh Quân

2020-06-01 15:15:12



using System;
using System.Collections.Generic;

namespace qlsp
{
    class Program
    {
        static void Main(string[] args)
        {
            List<Product> productList = new List<Product>();
            int choose;
            do
            {             
                ShowMenu();
                choose = int.Parse(Console.ReadLine());

                switch (choose)
                {
                    case 1:
                        Console.WriteLine("N san pham muon them ");
                        int n = int.Parse(Console.ReadLine());
                        Product pro = new Product();
                        for (int i=0; i <n; i++)
                        {
                            pro = new Product();
                            pro.Input();
                            productList.Add(pro);
                        }
                        break;
                    case 2:
                        foreach(Product propro in productList)
                        {
                            propro.Display();
                        }
                        break;
                    case 3 :
                        productList.Sort((a, b) => a.Price.CompareTo(b.Price));
                        foreach (Product propro in productList)
                        {
                            propro.Display();
                        }
                        break;
                    case 4:
                        Console.WriteLine("Thoat");
                        break;
                    default:
                        Console.WriteLine("Nhap khong chinh xac ( chi nhap tu 1-4)");
                        break;
                        
                }
            } while (choose != 5);
        }
            static void ShowMenu()
            {
                Console.WriteLine("1. So san pham muon them : ");
                Console.WriteLine("2. Thong tin vua nhap : ");
                Console.WriteLine("3. Sap xep thong tin giam dan theo gia va hien thi : ");
                Console.WriteLine("4. Thoat : ");
            }
    }
}



using System;
using System.Collections.Generic;
using System.Text;

namespace qlsp
{
    class Product
    {
        public string NameProduct { get; set; }
        public string Producer { get; set; }
        public float Price { get; set; }
        public Product()
        {

        }
        public Product(string NameProduct,string Producer,float Price)
        {
            this.Producer = Producer;
            this.NameProduct = NameProduct;
            this.Price = Price;
        }
        public void Input()
        {
            Console.WriteLine("Nhap ten san pham :");
            NameProduct = Console.ReadLine();
            Console.WriteLine("Nhap nha san xuat :");
            Producer = Console.ReadLine();
            Console.WriteLine("Nhap gia tien :");
            Price = float.Parse(Console.ReadLine());
        }
        public void Display()
        {
            Console.WriteLine("Ten san pham : {0},Nha san xuat : {1}, Gia ban : {2}",NameProduct,Producer,Price);
        }
    }
}


Phan Bạch Tùng Dương [T1907A]
Phan Bạch Tùng Dương

2020-05-29 02:14:21



using System;
using System.Collections.Generic;
using System.Text;

namespace Lession6
{
    class Program
    {
        public static int chosse;
        public static void Main(String[] agrs)
        {
            Console.InputEncoding = Encoding.UTF8;
            Console.OutputEncoding = Encoding.UTF8;
            List<Product> Products = new List<Product>();

            do
            {
                showMenu();
                checkChosse();
                switch (chosse)
                {
                    case 1:
                        input(Products);
                        break;
                    case 2:
                        display(Products);
                        break;
                    case 3:
                        sort(Products);
                        display(Products);
                        break;
                    case 4:
                        Console.WriteLine("Stop!!!!!");
                        break;
                    default:
                        Console.WriteLine("Error!!! Please try again.....");
                        break;
                }
            } while (chosse != 4);
        }
        public static void showMenu()
        {
            Console.WriteLine("\t\t\tMenu");
            Console.WriteLine("1. Nhap thong tin cho n san pham ");
            Console.WriteLine("2. Hien thi thong tin vua nhap: ");
            Console.WriteLine("3. Sap xep thong tin giam dan theo gia va hien thi: ");
            Console.WriteLine("4. Exit. ");

        }

        static void input(List<Product> Products)
        {
            for (; ; )
            {
                Product product = new Product();
                product.input();
                Products.Add(product);
                Console.WriteLine("nhap them product : (Y/N)");
                string option = Console.ReadLine();
                if (option.ToUpper().Equals("N"))
                {
                    break;
                }
            }
        }
        static void display(List<Product> Products)
        {
            foreach (var item in Products)
            {
                item.display();
            }
        }
        static void sort(List<Product> Products)
        {
            Products.Sort((x, y) => y.Price.CompareTo(x.Price));
        }
        private static void checkChosse()
        {
            bool isName = true;
            while (isName)
            {
                string str;
                Console.Write("Chon: ");
                str = Console.ReadLine();

                if (String.IsNullOrEmpty(str))
                {
                    Console.WriteLine("Lua chon khong duoc de trong!!!");
                }
                else
                {
                    if (check(str))
                    {
                        chosse = int.Parse(str);
                        if (chosse > 0)
                        {
                            isName = false;
                        }
                        else
                        {
                            Console.WriteLine("Lua chon phai lon hon 0");
                        }
                    }
                    else
                    {
                        Console.WriteLine("Khong duoc nhap chu!! ");
                    }

                }

            }
        }

        static bool check(string s)
        {
            bool checkk = false;
            foreach (char item in s)
            {
                if (item >= 48 && item <= 57)
                {
                    checkk = true;
                }
            }
            return checkk;
        }
    }
}





using System;

namespace Lession6
{
    class Product
    {
        public string Name { get; set; }
        public string Producer { get; set; }
        private float _price;
        public float Price
        {
            get
            {
                return _price;
            }
            set
            {
                if (value >= 0)
                {
                    this._price = value;
                }
                else
                {
                    Console.WriteLine("Gia nhap vao phai lon hon 0");
                }
            }
        }

        public Product() { }
        public Product(string Name, string Producer, float Price)
        {
            this.Name = Name;
            this.Producer = Producer;
            this.Price = Price;
        }

        public void input()
        {
            checkName();
            checkProducer();
            checkPrice();
        }

        public void display()
        {
            Console.WriteLine("Ten: {0}\nNha san xuat: {1}\nGia: {2}", Name, Producer, Price);
        }

        private void checkName()
        {
            bool isName = true;
            while (isName)
            {
                Console.Write("Nhap ten san pham: ");
                Name = Console.ReadLine();
                if (String.IsNullOrEmpty(Name))
                {
                    Console.WriteLine("Ten san pham khong duoc de trong!!!");
                }
                else
                {
                    isName = false;
                }
            }
        }
        private void checkProducer()
        {
            bool isName = true;
            while (isName)
            {
                Console.Write("Nhap ten nha san xuat: ");
                Producer = Console.ReadLine();
                if (String.IsNullOrEmpty(Producer))
                {
                    Console.WriteLine("Ten nha san khong duoc de trong!!!");
                }
                else
                {
                    isName = false;
                }
            }
        }

        private void checkPrice()
        {
            bool isName = true;
            while (isName)
            {
                Console.Write("Nhap gia san pham: ");
                string str;
                str = Console.ReadLine();

                if (String.IsNullOrEmpty(str))
                {
                    Console.WriteLine("Gia san pham khong duoc de trong!!!");
                }
                else
                {
                    Price = float.Parse(str);
                    if (Price > 0)
                    {
                        isName = false;
                    }
                }

            }
        }
    }
}


Phạm Ngọc Minh [T1907A]
Phạm Ngọc Minh

2020-05-28 15:32:09



using System;
using System.Collections.Generic;

namespace QLSP
{
    class Program
    {
        static void Main(string[] args)
        {
            List<Product> productList = new List<Product>();
            int choose;
            do
            {             
                ShowMenu();
                choose = int.Parse(Console.ReadLine());

                switch (choose)
                {
                    case 1:
                        Console.WriteLine("N san pham muon them ");
                        int n = int.Parse(Console.ReadLine());
                        Product pro = new Product();
                        for (int i=0; i <n; i++)
                        {
                            pro = new Product();
                            pro.Input();
                            productList.Add(pro);
                        }
                        break;
                    case 2:
                        foreach(Product propro in productList)
                        {
                            propro.Display();
                        }
                        break;
                    case 3 :
                        productList.Sort((a, b) => a.Price.CompareTo(b.Price));
                        foreach (Product propro in productList)
                        {
                            propro.Display();
                        }
                        break;
                    case 4:
                        Console.WriteLine("Thoat");
                        break;
                    default:
                        Console.WriteLine("Nhap khong chinh xac ( chi nhap tu 1-4)");
                        break;
                        
                }
            } while (choose != 5);
        }
            static void ShowMenu()
            {
                Console.WriteLine("1. So san pham muon them : ");
                Console.WriteLine("2. Thong tin vua nhap : ");
                Console.WriteLine("3. Sap xep thong tin giam dan theo gia va hien thi : ");
                Console.WriteLine("4. Thoat : ");
            }
    }
}



using System;
using System.Collections.Generic;
using System.Text;

namespace QLSP
{
    class Product
    {
        public string NameProduct { get; set; }
        public string Producer { get; set; }
        public float Price { get; set; }
        public Product()
        {

        }
        public Product(string NameProduct,string Producer,float Price)
        {
            this.Producer = Producer;
            this.NameProduct = NameProduct;
            this.Price = Price;
        }
        public void Input()
        {
            Console.WriteLine("Nhap ten san pham :");
            NameProduct = Console.ReadLine();
            Console.WriteLine("Nhap nha san xuat :");
            Producer = Console.ReadLine();
            Console.WriteLine("Nhap gia tien :");
            Price = float.Parse(Console.ReadLine());
        }
        public void Display()
        {
            Console.WriteLine("Ten san pham : {0},Nha san xuat : {1}, Gia ban : {2}",NameProduct,Producer,Price);
        }
    }
}


nguyễn văn huy [T1907A]
nguyễn văn huy

2020-05-27 03:22:47



using System;
using System.Collections.Generic;
using System.Security.Cryptography.X509Certificates;

namespace sanpham
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("Hello World!");
            List<Sanpham> thaolist = new List<Sanpham>();
            Sanpham sanpham = new Sanpham();
           
            int choise;
            do
            {
                menu();
                choise = Int32.Parse(Console.ReadLine());
                switch (choise)
                {
                    case 1:
                        Console.WriteLine("nhập nsanr phẩm:");
                        int n = Int32.Parse(Console.ReadLine());
                        
                        for(int i = 0; i < n; i++)
                        {
                            Sanpham sanpham1 = new Sanpham();
                            sanpham1.input();
                            thaolist.Add(sanpham1);
                        }
                        break;
                    case 2:
                        foreach (Sanpham sanpham in thaolist)
                        {
                            sanpham.display();
                        }
                        break;
                    case 3:
                        sort(thaolist);
                        sanpham.display();
                        break;
                    case 4:
                        Console.WriteLine("thoát!!!");
                        break;
                    default:
                        Console.WriteLine(">>>>>>");
                        break;
                }
            } while (choise != 4);
        }
        static void menu()
        {
            Console.WriteLine("1.Nhập thông tin n sản phẩm");
            Console.WriteLine("2.Hiển thị thông tin sản phẩm");
            Console.WriteLine("3.Sắp xếp thông tin giảm dần thao giá:");
            Console.WriteLine("4.Choise");
        }
        static void sort(List<Sanpham> thaolist)
        {
            thaolist.Sort((x, y) => x.Giaban.CompareTo(y.Giaban));
        }
        

    }
}
>>>>>>
using System;
using System.Collections.Generic;
using System.Dynamic;
using System.Text;

namespace sanpham
{
    class Sanpham
    {
        private String Name { get; set; }
        private String Nhasx { get; set; }
        private int Giaban { get; set; }

        public void input()
        {
            Console.WriteLine("nhập tên sp:");
            Name = Console.ReadLine();
            Console.WriteLine("nhập nhà sản xuất:");
            Nhasx = Console.ReadLine();
            Console.WriteLine("nhập giá bán:");
            Giaban = int.Parse(Console.ReadLine());
        }
        public void display()
        {
            Console.WriteLine("{0},{1},{2},", Name, Nhasx, Giaban);
        }
    }
}


Phí Văn Long [T1907A]
Phí Văn Long

2020-05-26 09:47:07



using System;
using System.Collections.Generic;

namespace QLSanPham
{
    class Program
    {
        static void Main(string[] args)
        {
            List<Product> productList = new List<Product>();
            int choose;
            do
            {             
                ShowMenu();
                choose = int.Parse(Console.ReadLine());

                switch (choose)
                {
                    case 1:
                        Console.WriteLine("N san pham muon them ");
                        int n = int.Parse(Console.ReadLine());
                        Product pro = new Product();
                        for (int i=0; i <n; i++)
                        {
                            pro = new Product();
                            pro.Input();
                            productList.Add(pro);
                        }
                        break;
                    case 2:
                        foreach(Product propro in productList)
                        {
                            propro.Display();
                        }
                        break;
                    case 3 :
                        productList.Sort((a, b) => a.Price.CompareTo(b.Price));
                        foreach (Product propro in productList)
                        {
                            propro.Display();
                        }
                        break;
                    case 4:
                        Console.WriteLine("Thoat");
                        break;
                    default:
                        Console.WriteLine("Nhap khong chinh xac ( chi nhap tu 1-4)");
                        break;
                        
                }
            } while (choose != 5);
        }
            static void ShowMenu()
            {
                Console.WriteLine("1. So san pham muon them : ");
                Console.WriteLine("2. Thong tin vua nhap : ");
                Console.WriteLine("3. Sap xep thong tin giam dan theo gia va hien thi : ");
                Console.WriteLine("4. Thoat : ");
            }
    }
}




using System;
using System.Collections.Generic;
using System.Text;

namespace QLSanPham
{
    class Product
    {
        public string NameProduct { get; set; }
        public string Producer { get; set; }
        public float Price { get; set; }
        public Product()
        {

        }
        public Product(string NameProduct,string Producer,float Price)
        {
            this.Producer = Producer;
            this.NameProduct = NameProduct;
            this.Price = Price;
        }
        public void Input()
        {
            Console.WriteLine("Nhap ten san pham :");
            NameProduct = Console.ReadLine();
            Console.WriteLine("Nhap nha san xuat :");
            Producer = Console.ReadLine();
            Console.WriteLine("Nhap gia tien :");
            Price = float.Parse(Console.ReadLine());
        }
        public void Display()
        {
            Console.WriteLine("Ten san pham : {0},Nha san xuat : {1}, Gia ban : {2}",NameProduct,Producer,Price);
        }
    }
}


hoangduyminh [T1907A]
hoangduyminh

2020-05-26 08:44:15



using System;
using System.Collections.Generic;

namespace QuanLiSP
{
    class Program
    {
        static void Main(string[] args)
        {
            int choose;
            List<Product> products = new List<Product>();

            do
            {
                showMenu();
                choose = int.Parse(Console.ReadLine());

                switch (choose)
                {
                    case 1:
                        Console.WriteLine("Nhap vao n san pham:");
                        int n = int.Parse(Console.ReadLine());
                        Product product = new Product();
                        for(int i = 0; i < n; i++)
                        {
                            product = new Product();
                            product.input();
                            products.Add(product);
                        }
                        break;
                    case 2:
                        foreach(Product product1 in products)
                        {
                            product1.display();
                        }
                        break;
                    case 3:
                        products.Sort((x, y) => y.Price.CompareTo(x.Price));
                        foreach(Product product1 in products)
                        {
                            product1.display();
                        }
                        break;
                    case 4:
                        Console.WriteLine("Thoat!!");
                        break;
                    default:
                        Console.WriteLine("Error!");
                        break;
                }

            } while (choose != 5);
        }
        static void showMenu()
        {
            Console.WriteLine("1.Nhap thong tin n cho san pham");
            Console.WriteLine("2.Hien thi thong tin vua nhap");
            Console.WriteLine("3.Sap xep thong tin giam dan theo gia va hien thi");
            Console.WriteLine("4.Thoat!");
            Console.WriteLine("Choose");
        }
    }
}





using System;
using System.Collections.Generic;
using System.Text;

namespace QuanLiSP
{
   class Product
    {
        public string NameHH { get; set; }
        public string NSX { get; set; }
        public int Price { get; set; }
       
        public Product()
        {

        }
        public void input()
        {
            Console.WriteLine("Nhap vao NameHH:");
            NameHH = Console.ReadLine();
            Console.WriteLine("Nhap vao NSX:");
            NSX = Console.ReadLine();
            Console.WriteLine("Nhap vao Gia:");
            Price = int.Parse(Console.ReadLine());
        }
        public void display()
        {
            Console.WriteLine("Product: NameHH{0}, NSX{1}, Gia{2}", NameHH, NSX, Price);
        }
    }
    
    
}


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