namespace HMI.Core.Entity { public class UserInfo { public static UserInfo User { get; private set; } public UserInfo(string id, string username, string name, string password = null) { Id = id; Username = username; Name = name; Password = password; } public string Id { get; private set; } public string Username { get; private set; } public string Name { get; private set; } public string Password { get; private set; } public static void Login(UserInfo info) { if (User == null) User = info; } } }