C#加载dll 创建类对象

//加载dll 创建类对象
string sqlightAssembly = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "system.data.sqlite.dll");

                Assembly lib = Assembly.LoadFrom(sqlightAssembly);
                foreach (Type t in lib.GetExportedTypes())
                {
                    if(t.FullName == "System.Data.SQLite.SQLiteFactory")
                        return (DbProviderFactory)Activator.CreateInstance(t);
                }

//获取CPU类型
private  ProcessorType GetProcessorArch()
        {
            using (System.Management.ManagementClass processors = new System.Management.ManagementClass("Win32_Processor"))
            {
                foreach (System.Management.ManagementObject processor in processors.GetInstances())
                {
                    int AddressWidth = int.Parse(processor["AddressWidth"].ToString());
                    int Architecture = int.Parse(processor["Architecture"].ToString());

                    //See Win32_Processor Class for details
                    if (AddressWidth == )
                        return ProcessorType.x86;
                    if (AddressWidth ==  && Architecture == )
                        return ProcessorType.x64;
                    if (AddressWidth ==  && Architecture == )
                        return ProcessorType.IPF;
                }
            }

            throw new NotSupportedException();
        }