【原创】 c#单文件绿色资源自更新

先引用dnlib.dll 更新程序先fody成一个文件

放置主程序资源文件 更新程序.exe

 #region

 using System;
 using System.Diagnostics;
 using System.IO;
 using System.Linq;
 using System.Runtime.InteropServices;
 using System.Text;
 using dnlib.DotNet;
 using dnlib.DotNet.Resources;
 using dnlib.DotNet.Writer;
 using dnlib.IO;

 #endregion

 namespace 更新程序
 {
     internal class Program
     {
         private static string FileExt { get; set; }
         private static string Filename { get; set; }
         private static void Main()
         {
             FileExt = Path.GetExtension(Properties.Resources.FileName);
             Filename = Path.GetFileNameWithoutExtension(Properties.Resources.FileName);
             UpDateResx();
             DeleteItself();
         }

         public static void UpDateResx()
         {
             string  path = Properties.Resources.FileName;
             string resxName = Properties.Resources.Name;
             string resxValue = Properties.Resources.Value;
             var processes = Process.GetProcesses();
             Stopwatch st = new Stopwatch();
             st.Start();

             while (processes.FirstOrDefault(s => Filename == s.ProcessName) != null)
             {
                 if (st.Elapsed > TimeSpan.FromSeconds())
                 {
                     return;
                 }
             }

             ModuleDefMD module = ModuleDefMD.Load(path);

             EmbeddedResource resx =
                 (EmbeddedResource) module.Resources.Find(module.Assembly.Name + ".Properties.Resources.resources");

             ResourceElementSet elementSet = ResourceReader.Read(module, resx.Data);
             try
             {
                 ResourceElement element = elementSet.ResourceElements.First(s => s.Name == resxName);
                 element.ResourceData = new BuiltInResourceData(ResourceTypeCode.String, resxValue);
                 elementSet.Add(element);

                 MemoryStream ms = new MemoryStream();
                 ResourceWriter.Write(module, ms, elementSet);
                 resx.Data = new MemoryImageStream(, ms.GetBuffer(), , ms.GetBuffer().Length);

                 if (module.IsILOnly)
                     module.Write(Filename+"_tmp"+FileExt, new ModuleWriterOptions(module));
                 else
                     module.NativeWrite(Filename + "_tmp" + FileExt);
             }
             catch (Exception e)
             {
                 Console.WriteLine(e);
                 return;
             }
             module.Dispose();

         }

         /// <summary>
         ///     删除程序自身（本文地址：http://www.cnblogs.com/Interkey/p/DeleteItself.html）【推荐】
         /// </summary>
         private static void DeleteItself()
         {
             string selfName = Path.GetFileName(Process.GetCurrentProcess().MainModule.FileName);
             string vBatFile = Path.GetDirectoryName(Process.GetCurrentProcess().MainModule.FileName) + "\\DeleteItself.bat";
             using (StreamWriter vStreamWriter = new StreamWriter(vBatFile, false, Encoding.Default))
             {
                 vStreamWriter.Write(":move\r\n" +
                                     $" move /Y {Filename}_tmp{FileExt} {Filename}{FileExt}  \r\n" +
                                     $"if exist {Filename}_tmp{FileExt} goto move\r\n" +
                                     ":del\r\n" +
                                     $" del {selfName}\r\n" +
                                     $"if exist {selfName} goto del\r\n" +
                                     "del %0\r\n");
             }

             //************ 执行批处理
             WinExec(vBatFile, );
             //************ 结束退出
             Environment.Exit();
         }

         [DllImport("kernel32.dll")]
         public static extern uint WinExec(string lpCmdLine, uint uCmdShow);
     }
 }

主程序结束时中使用下列方法自更新资源

  public static void WriteUpdate(string name,string value)
         {
             string selfName =Path.GetFileName(Process.GetCurrentProcess().MainModule.FileName);

             ModuleDefMD module = ModuleDefMD.Load(Properties.Resources.更新程序);

             EmbeddedResource resx =
                 (EmbeddedResource)module.Resources.Find(module.Assembly.Name + ".Properties.Resources.resources");

             ResourceElementSet elementSet = dnlib.DotNet.Resources.ResourceReader.Read(module, resx.Data);
             try
             {
                 ResourceElement element = elementSet.ResourceElements.First(s => s.Name == "FileName");
                 element.ResourceData = new BuiltInResourceData(ResourceTypeCode.String, selfName);
                 elementSet.Add(element);

                 ResourceElement element1 = elementSet.ResourceElements.First(s => s.Name == "Name");
                 element1.ResourceData = new BuiltInResourceData(ResourceTypeCode.String, name);
                 elementSet.Add(element1);

                 ResourceElement element2 = elementSet.ResourceElements.First(s => s.Name == "Value");
                 element2.ResourceData = new BuiltInResourceData(ResourceTypeCode.String, value);
                 elementSet.Add(element2);

                 MemoryStream ms = new MemoryStream();
                 dnlib.DotNet.Resources.ResourceWriter.Write(module, ms, elementSet);
                 resx.Data = new MemoryImageStream(, ms.GetBuffer(), , ms.GetBuffer().Length);

                 if (module.IsILOnly)
                     module.Write("更新程序.exe", new ModuleWriterOptions(module));
                 else
                     module.NativeWrite("更新程序.exe");
             }
             catch (Exception e)
             {
                 Console.WriteLine(e);
                 return;
             }
             module.Dispose();
             ProcessStartInfo psi = new ProcessStartInfo("更新程序.exe");
             psi.WindowStyle = ProcessWindowStyle.Hidden;
             psi.CreateNoWindow = true;
             Process.Start(psi);
             Environment.Exit();
         }