【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(10))
                {
                    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(0, ms.GetBuffer(), 0, 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
" +
                                    $" move /Y {Filename}_tmp{FileExt} {Filename}{FileExt}  
" +
                                    $"if exist {Filename}_tmp{FileExt} goto move
" +
                                    ":del
" +
                                    $" del {selfName}
" +
                                    $"if exist {selfName} goto del
" +
                                    "del %0
");
            }

            //************ 执行批处理
            WinExec(vBatFile, 0);    
            //************ 结束退出
            Environment.Exit(0);
        }


        [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(0, ms.GetBuffer(), 0, 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(0);
        }