PROSAGA码农传奇-C#/.net-C＃登录/注册简单的控制台应用程序

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   <pre>
    <code>
      class Program
{
    static void Main(string[] args)
    {
        var arrUsers = new Users[]
        {
            new Users("tomas","samsung",2605),
            new Users("stefan","pasle",15),
            new Users("dimitar","jovanov",32)
        };

Start:
        Console.WriteLine("Za login stisnete 1 ili za register 2");
        var input = Console.ReadLine();

bool successfull = false;
        while (!successfull)
        {

if (input == "1")
            {
                Console.WriteLine("Write your username:");
                var username = Console.ReadLine();
                Console.WriteLine("Enter your password:");
                var password = Console.ReadLine();

foreach (Users user in arrUsers)
                {
                    if (username == user.username && password == user.password)
                    {
                        Console.WriteLine("You have successfully logged in !!!");
                        Console.ReadLine();
                        successfull = true;
                        break;
                    }
                }

if (!successfull)
                {
                    Console.WriteLine("Your username or password is incorect, try again !!!");
                }

}

else if (input == "2")
            {

Console.WriteLine("Enter your username:");
                var username = Console.ReadLine();

Console.WriteLine("Enter your password:");
                var password = Console.ReadLine();

Console.WriteLine("Enter your id:");
                int id = int.Parse(Console.ReadLine());

Array.Resize(ref arrUsers, arrUsers.Length + 1);
                arrUsers[arrUsers.Length - 1] = new Users(username, password, id);
                successfull = true;
                goto Start;

}
            else
            {
                Console.WriteLine("Try again !!!");
                break;

}

}
}

public class Users
{
    public string username;
    public string password;
    private int id;

public Users(string username, string password, int id)
    {
        this.username = username;
        this.password = password;
        this.id = id;
    }
}

</code>
  </pre>
  <P>
    我对您的代码进行了一些更改，请检查区别
  </p>
  <P>
    我在开始之前放置了arrUsers，以便在转到Start时引用不会改变
  </p>
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