tringBuilder classSource = new StringBuilder();
            classSource.Append("public   class   DynamicClass \n");
            classSource.Append("{\n");

            //创建属性。
            classSource.Append(propertyString("aaa"));
            classSource.Append(propertyString("bbb"));
            classSource.Append(propertyString("ccc"));

            classSource.Append("}");

            System.Diagnostics.Debug.WriteLine(classSource.ToString());

            //编译代码。
            CompilerResults result = provider.CompileAssemblyFromSource(paras, classSource.ToString());

            //获取编译后的程序集。
            Assembly assembly = result.CompiledAssembly; [Page]

            return assembly;
        }

        private static string propertyString(string propertyName)
        {
            StringBuilder sbProperty = new StringBuilder();
            sbProperty.Append(" private   int   _" + propertyName + "   =   0;\n");
            sbProperty.Append(" public   int   " + "" + propertyName + "\n");
            sbProperty.Append(" {\n");
            sbProperty.Append(" get{   return   _" + propertyName + ";}   \n");
            sbProperty.Append(" set{   _" + propertyName + "&nbs