static class Program
{
    static void Main(string carMake, string carModel, string carColour, string bikeModel, string bikeMake, string bikeColour, string truckMake, string truckModel, string truckColour)
    {
        car Mynewcar = new car();
        motorbike Mynewbike = new motorbike();
        truck Mynewtruck = new truck();

        int choice = 0;
        while (choice != 5)
        {

            Console.WriteLine("MENU");
            Console.WriteLine("What service do you need");
            Console.WriteLine("1. Car");
            Console.WriteLine("2. Motorbike");
            Console.WriteLine("3. Truck");
            Console.WriteLine("4. Search");
            Console.WriteLine("5. Exit");

            choice = int.Parse(Console.ReadLine());

            switch (choice)
            {
                case 1:
                    Console.WriteLine("What is the car make?");
                    Mynewcar.make = Console.ReadLine().ToLower();
                    carMake = Console.ReadLine();
                    Console.WriteLine("");

                    Console.WriteLine("What is the car model?");
                    Mynewcar.model = Console.ReadLine().ToLower();
                    carModel = Console.ReadLine();
                    Console.WriteLine("");

                    Console.WriteLine("What is the car Colour?");
                    Mynewcar.colour = Console.ReadLine().ToLower();
                    carColour = Console.ReadLine();
                    Console.WriteLine("");

                    break;
                case 2:
                    Console.WriteLine("what is the motorbike make");
                    Mynewbike.make = Console.ReadLine().ToLower();
                    bikeMake = Console.ReadLine();
                    Console.WriteLine("");

                    Console.WriteLine("what is the motorbike model");
                    Mynewbike.model = Console.ReadLine().ToLower();
                    bikeModel = Console.ReadLine();
                    Console.WriteLine("");

                    Console.WriteLine("what is the motorbike colour");
                    Mynewbike.colour = Console.ReadLine().ToLower();
                    bikeColour = Console.ReadLine();
                    Console.WriteLine("");

                    break;
                case 3:
                    Console.WriteLine("what is the trucks make");
                    Mynewtruck.make = Console.ReadLine().ToLower();
                    truckMake = Console.ReadLine();
                    Console.WriteLine("");

                    Console.WriteLine("what is the trucks model");
                    Mynewtruck.model = Console.ReadLine().ToLower();
                    truckModel = Console.ReadLine();
                    Console.WriteLine("");

                    Console.WriteLine("what is the trucks colour");
                    Mynewtruck.colour = Console.ReadLine().ToLower();
                    truckColour = Console.ReadLine();
                    Console.WriteLine("");

                    break;
                case 4:
                    string searchchoice = "";
                    Console.WriteLine("select Car, Motobike or truck to search?");
                    searchchoice = Console.ReadLine().ToLower();
                    if (searchchoice.Equals("car"))
                    {
                        Console.WriteLine("Car in inventory: {0} - {1} - {2}", carMake, carModel, carColour);
                    }
                    else if (searchchoice.Equals("motorbike"))
                    {
                        Console.WriteLine("Motorbike in inventory: {0} - {1} - {2}", bikeMake, bikeModel, bikeColour);
                    }
                    else
                    {
                        Console.WriteLine("Trucks in inventory: {0} - {1} - {2}", truckMake, truckModel, truckColour);
                    }
                    Console.ReadLine();
                    break;
                case 5:
                    break;
                default:
                    Console.WriteLine("Sorry, invalid selection");
                    break;
            }
        }
    }

    class car
    {
        public string make { get; set; }
        public string model { get; set; }
        public string colour { get; set; }

        public List<String> carList(car Mynewcar)
        {
            List<String> caradd = new List<String>();
            caradd.Add(Mynewcar.make);
            string carMake = Mynewcar.make;

            caradd.Add(Mynewcar.model);
            string carModel = Mynewcar.model;

            caradd.Add(Mynewcar.colour);
            string carColour = Mynewcar.model;


            return caradd;
        }

    }
    class motorbike : car
    {
        public List<String> bikeList(motorbike Mynewbike)
        {
            List<String> bikeadd = new List<String>();
            bikeadd.Add(Mynewbike.model);
            string bikeModel = Mynewbike.model;

            bikeadd.Add(Mynewbike.make);
            string bikeMake = Mynewbike.make;

            bikeadd.Add(Mynewbike.colour);
            string bikeColour = Mynewbike.colour;

            return bikeadd;
        }
    }
    class truck : car
    {
        public List<String> truckList(truck Mynewtruck)
        {
            List<String> truckadd = new List<String>();
            truckadd.Add(Mynewtruck.make);
            string truckMake = Mynewtruck.make;

            truckadd.Add(Mynewtruck.model);
            string truckModel = Mynewtruck.model;

            truckadd.Add(Mynewtruck.colour);
            string truckColour = Mynewtruck.colour;

            return truckadd;
        }
    }
}

我只是想知道是否有人可以查看我的代码以了解我可以改进哪些方面。

此外，我正在努力将多个项目添加到汽车、自行车和卡车的列表中。您将如何添加属性的多个实例并将它们列出到控制台？

最佳答案

感谢 AddRange :

例子:

public class Person
{ 
    private string Name;
    private string FirstName;

    public Person(string name, string firstname) => (Name, FirstName) = (name, firstname);
}

添加多个Person到 List<> :

List<Person> listofPersons = new List<Person>();
listofPersons.AddRange(new List<Person>
{
    new Person("John1", "Doe" ),
    new Person("John2", "Doe" ),
    new Person("John3", "Doe" ),
 });

关于c# - 将多个项目添加到列表，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/21345005/