在C＃中在运行时加载DLL

成员在编译时必须是可解析的，才能直接从C＃调用。否则，您必须使用反射或动态对象。

反射

namespace ConsoleApplication1{    using System;    using System.Reflection;    class Program    {        static void Main(string[] args)        { var DLL = Assembly.LoadFile(@"C:visual studio 2012ProjectsConsoleApplication1ConsoleApplication1DLL.dll"); foreach(Type type in DLL.GetExportedTypes()) {     var c = Activator.CreateInstance(type);     type.InvokeMember("Output", BindingFlags.InvokeMethod, null, c, new object[] {@"Hello"}); } Console.ReadLine();        }    }}

动态（.NET 4.0）

namespace ConsoleApplication1{    using System;    using System.Reflection;    class Program    {        static void Main(string[] args)        { var DLL = Assembly.LoadFile(@"C:visual studio 2012ProjectsConsoleApplication1ConsoleApplication1DLL.dll"); foreach(Type type in DLL.GetExportedTypes()) {     dynamic c = Activator.CreateInstance(type);     c.Output(@"Hello"); } Console.ReadLine();        }    }}