c# 用代码来设置程序的PrivatePath

有时候我们想让程序的exe文件和dll文件分开在不同目录，这时候可以有3种方法

1.在app.config中配置

<runtime>  
    <gcConcurrent enabled="true" />  
    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">  
      <publisherPolicy apply="yes" />  
      <probing privatePath="32;64" />  
    </assemblyBinding>  
  </runtime>  

2. AppDomain.CurrentDomain.AppendPrivatePath来设置

3.new AppDomainSetup().PrivateBinPath 来设置

if (AppDomain.CurrentDomain.IsDefaultAppDomain())  
 {  
     string appName = AppDomain.CurrentDomain.FriendlyName;  
     var currentAssembly = Assembly.GetExecutingAssembly();  
     AppDomainSetup setup = new AppDomainSetup();  
     setup.ApplicationBase = System.Environment.CurrentDirectory;  
     setup.PrivateBinPath = "Libs";  
     setup.ConfigurationFile = setup.ApplicationBase +  
                         string.Format("\\Config\\{0}.config", appName);  
     AppDomain newDomain = AppDomain.CreateDomain("NewAppDomain", null, setup);  
     int ret = newDomain.ExecuteAssemblyByName(currentAssembly.FullName, e.Args);  
     AppDomain.Unload(newDomain);  
     Environment.ExitCode = ret;  
     Environment.Exit(0);  
     return;  
 }  

可有时候又不想把他放在config文件上，只想用代码来实现，第二中方法发现已经过期，第三种方法MSDN语焉不详的，网上也没有什么资料，目前就用第四种方法

4.AppDomain有个AssemblyResolve事件，加载dll失败的时候触发，可以在这个事件里面处理

AppDomain.CurrentDomain.AssemblyResolve += CurrentDomain_AssemblyResolve;

 在CODE上查看代码片派生到我的代码片
/// <summary>  
        /// 对外解析dll失败时调用  
        /// </summary>  
        /// <param name="sender"></param>  
        /// <param name="args"></param>  
        /// <returns></returns>  
        static System.Reflection.Assembly CurrentDomain_AssemblyResolve(object sender, ResolveEventArgs args)  
        {  
            string path = System.IO.Path.Combine(AppDomain.CurrentDomain.BaseDirectory, @"Libs\");  
            path = System.IO.Path.Combine(path, args.Name.Split(',')[0]);  
            path = String.Format(@"{0}.dll", path);  
            return System.Reflection.Assembly.LoadFrom(path);  
        }

转自：https://blog.csdn.net/qq452626100/article/details/52816071