public static class DynamicFactory    {        //创建线程安全（对象不会再同一时刻被多个线程访问）的字典对象        private static ConcurrentDictionary<Type, Type> s_dynamicTypes = new ConcurrentDictionary<Type, Type>();        private static Func<Type, Type> s_dynamicTypeCreator = new Func<Type, Type>(CreateDynamicType);        /// <summary>        /// 创建object的扩展方法用来扩展匿名对象        /// </summary>        public static object ToPublic(this object entity)        {            try            {                var entityType = entity.GetType();                var dynamicType = s_dynamicTypes.GetOrAdd(entityType, s_dynamicTypeCreator);                var dynamicObject = Activator.CreateInstance(dynamicType);                foreach (var entityProperty in entityType.GetProperties())                {                    var value = http://www.mamicode.com/entityProperty.GetValue(entity, null);                    //重新给传递过来的匿名类赋值                    dynamicType.GetField(entityProperty.Name).SetValue(dynamicObject, value);                }                return dynamicObject;            }            catch (Exception ex)            {                Common.WriteLog("ToPublic", ex.ToString());                return null;            }        }        private static Type CreateDynamicType(Type entityType)        {            //创建程序集名称            try            {                var asmName = new AssemblyName("DynamicAssembly_" + Guid.NewGuid());                //定义程序集                var asmBuilder = AppDomain.CurrentDomain.DefineDynamicAssembly(asmName, AssemblyBuilderAccess.Run);                //在程序集中定义模块                var moduleBuilder = asmBuilder.DefineDynamicModule("DynamicModule_" + Guid.NewGuid());                //将传递过来的匿名类型名称重新命名并设置到新的模块程序集中                var typeBuilder = moduleBuilder.DefineType(                    entityType.GetType() + "$DynamicType",                    TypeAttributes.Public);                //定义该类的构造函数                typeBuilder.DefineDefaultConstructor(MethodAttributes.Public);                //循环匿名类中所有字段                foreach (var entityProperty in entityType.GetProperties())                {                    //将匿名类的字段重新定义到当前自定义的程序集中                    typeBuilder.DefineField(entityProperty.Name, entityProperty.PropertyType, FieldAttributes.Public);                }                //创建自定义程序集                return typeBuilder.CreateType();            }            catch (Exception ex)            {                Common.WriteLog("ToPublic", ex.ToString());                return null;            }        }    }
//用法
 dynamic excelData = http://www.mamicode.com/new
                {
                    str_Title = "获取标题",
                    str_Code = "获取标题",   
　　　　　　　　　　　　dt_SheetTable = datatable
                }.ToPublic();