账号存本地

XHWK.WKTool/App.cs

         /// </summary>
         public static string[] OutPut = new string[] { };
         public static string CameraPosition = string.Empty;
+        /// <summary>
+        /// 数据存放目录
+        /// </summary>
+        public static string DataPath = Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData) + "\\XHMicroLesson\\"; 
         #region 点阵笔
         /// <summary>
         /// 点阵笔

XHWK.WKTool/LoginWindow.xaml.cs

 using Common.system;
 using System;
 using System.Configuration;
+using System.Text;
 using System.Windows;
 using XHWK.WKTool.DAL;
 
             int code = @interface.Login(accountNumber, password);
             if(code==0)
             {
+                FileToolsCommon.CreateDirectory(APP.DataPath);
+                string applicationData = APP.DataPath + "accountNumber.txt";
+                string accountNumbers = DateTime.Now.ToLongDateString().ToString();//当前时间 
+                System.IO.File.WriteAllText(applicationData, accountNumbers, Encoding.Default);//存放签名验证日期
+
+
                 UpdateSettingString("userName", txbAccountNumber.Text);
                 APP.IsLoginType = true;
                 txbAccountNumber.Text = string.Empty;