引入了,但是引用的时候出错
F:\interpub\TestDll\bin\Master.dll Referenced class 'Master' has base class or interface 'System.Web.Services.Protocols.SoapHttpClientProtocol' defined in an assembly that is not referenced. You must add a reference to assembly 'System.Web.Services'.
噢,我忘了添加到System.Web.Services.dll的引用
添加上以后就好了