using System;using Microsoft.CSharp;using System.CodeDom.Compiler; class Program{  public static void Main()  {    // The C# code to execute    string code = "using System; " +           "using System.IO; " +           "public class MyClass{ " +           "  public static void PrintConsole(string message){ " +           "    Console.WriteLine(message); " +           "  } " +           "} ";     // Compiler and CompilerParameters    CSharpCodeProvider codeProvider = new CSharpCodeProvider();    CompilerParameters compParameters = new CompilerParameters();     // Compile the code    CompilerResults res = codeProvider.CompileAssemblyFromSource(compParameters, code);     // Create a new instance of the class 'MyClass'　　　　// 有命名空間的，需要命名空間.類名    object myClass = res.CompiledAssembly.CreateInstance("MyClass");     // Call the method 'PrintConsole' with the parameter 'Hello World'    // "Hello World" will be written in console    myClass.GetType().GetMethod("PrintConsole").Invoke(myClass, new object[] {"Hello World" });     Console.Read();  }}