using System;
using System.Reflection;
using System.Globalization;
using Microsoft.CSharp;
using System.CodeDom;
using System.CodeDom.Compiler;

namespace ConsoleApplication1
{
  public class Program
  {
    static void Main(string[] args)
    {
      // 定义需要动态执行的 C# 代码字符串，当然也可从文本文件中读取。
      string code = @"
        using System;
        namespace MyNamespace
        {
          public class MyClass
          {
            private string name;

            public MyClass(string name)
            {
              this.name = name;
            }

            public void Test()
            {
              Console.WriteLine(""{0} - {1}"", name, DateTime.Now);
            }
          }
        }
      ";

      // 创建编译器对象
      CSharpCodeProvider p = new CSharpCodeProvider();
      ICodeCompiler cc = p.CreateCompiler();

      // 设置编译参数
      CompilerParameters options = new CompilerParameters();
      options.ReferencedAssemblies.Add("System.dll");
      options.GenerateInMemory = true;
      options.OutputAssembly = "MyTest";
      
      // 开始编译
      CodeSnippetCompileUnit cu = new CodeSnippetCompileUnit(code);
      CompilerResults cr = cc.CompileAssemblyFromDom(options, cu);

      // 执行动态程序集相关内容。
      Type t = cr.CompiledAssembly.GetType("MyNamespace.MyClass");
      object o = cr.CompiledAssembly.CreateInstance("MyNamespace.MyClass", false, BindingFlags.Default,
        null, new object[] { "Tom" }, CultureInfo.CurrentCulture, null);
      t.InvokeMember("Test", BindingFlags.Instance | BindingFlags.Public | BindingFlags.InvokeMethod,
        null, o, null);

    }
  }
}