C#创建泛型实例

/// <summary>

        /// 创建实例 支持泛型的创建  

        /// </summary>

        /// <typeparam name="T">此处T形如 Common<User></typeparam>

        /// <returns></returns>

        public static T Create<T>()

        {

            var t = typeof (T);

            if (t.IsInterface)

            {

                var name = string .Format("{0}.{1}", AssemblyStr, t.Name.TrimStart('I' ));

                var type = GetAssembly().GetType(name);

                if (type.IsGenericType)

                {

                    var typeArgument = t.GetGenericArguments().FirstOrDefault();  //单个泛型形参

                    var genericType = type.MakeGenericType(typeArgument);    

                    object O = (T)Activator .CreateInstance(genericType);

                }

                else

                {

                    return (T)Activator .CreateInstance(type);

                }

 

 

            }

            return default (T);

        }