c#反射-动态加载dll简单例子

假设已有组件ClassLibraryTEST.dll，放置于程序目录下。组件中ClassLibraryTEST命名空间下有TEST类，类中有方法sum。下面示例就是动态加载组件并调用sum方法的简例：

 static void Main(string[] args)
         {
             string dllPath = string.Format("{0}\\ClassLibraryTEST.dll", System.Environment.CurrentDirectory);//dll组件路径
             Assembly pAss = Assembly.LoadFile(dllPath);//加载组件
             Type pType = pAss.GetType("ClassLibraryTEST.TEST");//获得类，ClassLibraryTEST命名空间，TEST类名
             MethodInfo pMtInfo = pType.GetMethod("sum");//获得方法，sum方法名
             object o = Activator.CreateInstance(pType);//创建类实例
             int sum = (int)pMtInfo.Invoke(o, new object[] { ,  });//调用方法
         }

下面是组件代码：

 namespace ClassLibraryTEST
 {
     public class TEST
     {
         private int a = ;
         private int b = ;
         public string s = "n";
         private int Add(int a,int b)
         {
             return a + b;
         }
         public int sum(int a, int b)
         {
             return a + b;
         }
         private string url = "www.123.com";
     }
 }