可以预存上次键入的账号密码和登录网络了。密码存储未加密也不会有加密计划，请自行处理安全问题。

README.md

@@ -1,5 +1,4 @@
 # YSUNetLogin
----
 - 遵循GPL 2.0协议进行开源分发。
 - 实现了基本的登录、登出、查看用户信息相关协议。
 - 暂不支持HTTPS登录。

YSUNetLogin/AboutBox.cs

@@ -0,0 +1,105 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Drawing;
+using System.Linq;
+using System.Reflection;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace YSUNetLogin
+{
+    partial class AboutBox : Form
+    {
+        public AboutBox()
+        {
+            InitializeComponent();
+            this.Text = String.Format("关于 {0}", AssemblyTitle);
+            this.labelProductName.Text = AssemblyProduct;
+            this.labelVersion.Text = String.Format("版本 {0}", AssemblyVersion);
+            this.labelCopyright.Text = AssemblyCopyright;
+            this.labelCompanyName.Text = AssemblyCompany;
+            this.textBoxDescription.Text = AssemblyDescription;
+        }
+
+        #region 程序集特性访问器
+
+        public string AssemblyTitle
+        {
+            get
+            {
+                object[] attributes = Assembly.GetExecutingAssembly().GetCustomAttributes(typeof(AssemblyTitleAttribute), false);
+                if (attributes.Length > 0)
+                {
+                    AssemblyTitleAttribute titleAttribute = (AssemblyTitleAttribute)attributes[0];
+                    if (titleAttribute.Title != "")
+                    {
+                        return titleAttribute.Title;
+                    }
+                }
+                return System.IO.Path.GetFileNameWithoutExtension(Assembly.GetExecutingAssembly().CodeBase);
+            }
+        }
+
+        public string AssemblyVersion
+        {
+            get
+            {
+                return Assembly.GetExecutingAssembly().GetName().Version.ToString();
+            }
+        }
+
+        public string AssemblyDescription
+        {
+            get
+            {
+                object[] attributes = Assembly.GetExecutingAssembly().GetCustomAttributes(typeof(AssemblyDescriptionAttribute), false);
+                if (attributes.Length == 0)
+                {
+                    return "";
+                }
+                return ((AssemblyDescriptionAttribute)attributes[0]).Description;
+            }
+        }
+
+        public string AssemblyProduct
+        {
+            get
+            {
+                object[] attributes = Assembly.GetExecutingAssembly().GetCustomAttributes(typeof(AssemblyProductAttribute), false);
+                if (attributes.Length == 0)
+                {
+                    return "";
+                }
+                return ((AssemblyProductAttribute)attributes[0]).Product;
+            }
+        }
+
+        public string AssemblyCopyright
+        {
+            get
+            {
+                object[] attributes = Assembly.GetExecutingAssembly().GetCustomAttributes(typeof(AssemblyCopyrightAttribute), false);
+                if (attributes.Length == 0)
+                {
+                    return "";
+                }
+                return ((AssemblyCopyrightAttribute)attributes[0]).Copyright;
+            }
+        }
+
+        public string AssemblyCompany
+        {
+            get
+            {
+                object[] attributes = Assembly.GetExecutingAssembly().GetCustomAttributes(typeof(AssemblyCompanyAttribute), false);
+                if (attributes.Length == 0)
+                {
+                    return "";
+                }
+                return ((AssemblyCompanyAttribute)attributes[0]).Company;
+            }
+        }
+        #endregion
+    }
+}