反射dll里的函数

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生成dll的程序

using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Threading.Tasks;namespace ReflectionTest{    public class WriteTest    {        //public method with parametors          public void WriteString(string s, int i)        {            Console.WriteLine("WriteString:" + s + i.ToString());        }        //static method with only one parametor          public static void StaticWriteString(string s)        {            Console.WriteLine("StaticWriteString:" + s);        }        //static method with no parametor          public static void NoneParaWriteString()        {            Console.WriteLine("NoParaWriteString");        }    }}

反射调用dll函数的程序

<pre name="code" class="csharp">using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Threading.Tasks;using System.Reflection;class TestApp{    public static void Main()    {        Assembly ass;        Type type;        Object obj;        Object any = new Object();        ass = Assembly.LoadFile(@"F:\1Test\ReflectTest\ReflectTest\bin\Debug\ReflectTest.dll");//dll文件的绝对路径        type = ass.GetType("ReflectionTest.WriteTest");//命名空间.类名        /*example1---------*/        MethodInfo method = type.GetMethod("WriteString");        string test = "test";        int i = 1;        Object[] parametors = new Object[] { test, i };        obj = ass.CreateInstance("ReflectionTest.WriteTest");        method.Invoke(obj,//Instance object of the class need to be reflect              parametors);        //method.Invoke(any, parametors);//RuntimeError: class reference is wrong           /*example2----------*/        method = type.GetMethod("StaticWriteString");        method.Invoke(null, new string[] { "test" });        method.Invoke(obj, new string[] { "test" });        method.Invoke(any, new string[] { "test" });        /*example3-----------*/        method = type.GetMethod("NoneParaWriteString");        method.Invoke(null, null);    }}

备注

调用时不需要引用dll文件
http://blog.csdn.net/bdstjk/article/details/7535230
例子1种必须实例化反射要反射的类，因为要使用的方法并不是静态方法
例子2种我们想用的方法是一个静态方法，这时候Invoke的时候，对于第一个参数是无视的
第三个例子是一个调用无参数静态方法的例子，这时候两个参数我们都不需要指定，用null就可以了

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