我有一个基本的服务主机:m_host=newServiceHost(m_service,m_baseAddress);ServiceMetadataBehaviorbehavior=newServiceMetadataBehavior();behavior.HttpGetEnabled=true;behavior.MetadataExporter.PolicyVersion=PolicyVersion.Policy15;m_host.Description.Behaviors.Add(behavior);m_host.AddServiceEndpoint(typeof(IManager