动态编译真有用武之地？

临近下班，一同事突然问到：“如何用DotNet动态生成代码的类？”噫，静态语言要实现动态生成类,有点意思，不过这又有什么实际的应用呢？随手查了一下.Net Framework中提供的类库，看到Microsoft.Csharp命名空间，其Compiler类已经实现了编译器的托管包装。这下方便了，先实现代码看一下：

using System;
using System.IO;
using System.Text;
using Microsoft.CSharp;

namespace TestProject
{
    public class DynamicCompile
    {
        private String _physicspath = @"D:\Project.Net\TestProject\DcCodeFile\";//文件夹的路径
        private String _outputpath = @"D:\Project.Net\TestProject\bin";//输出文件的路径

        private String[] _filelist; //文件列表
        private String[] _cscode; //源码
        private String[] _filename; //文件名
        private String[] _import; //引用
        private System.Collections.IDictionary configs = null;//编译属性参数配置

        public DynamicCompile()
        {}

        public CompilerError[] ExCompiler()
        {
            Fill_cscode();
            Fill_import();
            Fill_configs();
            CompilerError[] ce= Compiler.Compile(_cscode,_filename, _outputpath,_import, configs);
            return ce;
        }
        private String[] Fill_filelist()
        {
            return System.IO.Directory.GetFiles(_physicspath,"*.cs");
        }
        private void Fill_cscode()
        {
            _filelist= Fill_filelist(); 
            _cscode=new String[_filelist.Length]; 
            _filename=new String[_filelist.Length];
            for(int i=0;i<_filelist.Length;i++)
            {
                String filepath= _filelist.GetValue(i).ToString();//获取文件路径
                _cscode[i]= ReadCodeFile(filepath, Encoding.GetEncoding("utf-8"));
                _filename[i]= System.IO.Path.GetFileName(filepath);
            }
        }
        private void Fill_import()
        {
            _import=new String[10];//数组长度视引用文件数量
            _import[0]=@"C:\WINDOWS\Microsoft.NET\Framework\v1.1.4322\System.dll";
            _import[1]=@"C:\WINDOWS\Microsoft.NET\Framework\v1.1.4322\System.Web.dll";
        }
        private void Fill_configs()
        {
            configs=new System.Collections.Specialized.ListDictionary();
            configs.Add("target","library"); 
        }
        //读取cscode内容
        private String ReadCodeFile(String path,Encoding encode)
        {
            String content=String.Empty;
            try
            {
                if (File.Exists(path))
                { 
                    StreamReader sr=new StreamReader(path,encode);
                    content=sr.ReadToEnd();
                    sr.Close();
                }
            }
            catch(IOException ex)
            {
                Console.Write(ex.ToString());
            }
            return content;
        }
    }
}

个人感觉如果只是为了加强系统的灵活性而动态生成代码类，并无太大意义，不知哪位有经验的兄弟来说两句。