add:增加文档和上位机

上位机/YKC/LoginWindow.xaml.cs

@@ -0,0 +1,66 @@
+using System;
+using System.Windows;
+using System.Windows.Input;
+using Newtonsoft.Json.Linq;
+
+namespace YKC
+{
+    public partial class LoginWindow : Window
+    {
+        public LoginWindow()
+        {
+            InitializeComponent();
+            txtUsername.Focus();
+
+            KeyDown += (s, e) =>
+            {
+                if (e.Key == Key.Enter) Login();
+            };
+        }
+
+        private async void Login_Click(object sender, RoutedEventArgs e) => Login();
+
+        private async void Login()
+        {
+            string user = txtUsername.Text.Trim();
+            string pass = txtPassword.Password;
+
+            if (string.IsNullOrEmpty(user) || string.IsNullOrEmpty(pass))
+            {
+                txtError.Text = "请输入账号和密码";
+                return;
+            }
+
+            btnLogin.IsEnabled = false;
+            btnLogin.Content = "校验中...";
+            txtError.Text = "";
+
+            await System.Threading.Tasks.Task.Run(() =>
+            {
+                var result = UdpClientHolder.Instance.SendSync(new JObject
+                {
+                    ["cmd"] = Config.Cmd["LOGIN"],
+                    ["username"] = user,
+                    ["password"] = pass
+                });
+
+                Dispatcher.BeginInvoke(new Action(() =>
+                {
+                    if (result.Value<bool>("success"))
+                    {
+                        var mainWin = new MainWindow();
+                        mainWin.SetUser(user);
+                        mainWin.Show();
+                        Close();
+                    }
+                    else
+                    {
+                        txtError.Text = result.Value<string>("error") ?? "账号或密码错误";
+                        btnLogin.IsEnabled = true;
+                        btnLogin.Content = "登 录";
+                    }
+                }));
+            });
+        }
+    }
+}