摘要： 其中 Client 和Service为控制台程序 Service.Interface为类库首先了解契约Interface两个接口using System.ServiceModel;using System.ServiceModel.Channels;namespace Artech.WcfServices.Service.Interface{ [ServiceContract(Namespace = "http://www.artech.com/", CallbackContract = typeof(ICalculatorCallback))] public interf 阅读全文