mySQLWorkbench版本为8.0.18 SELECT centre_service.centre_nameWHERE centre_service.centre_code= centre.centre_code AND (type_of_citizenship = "SC" OR type_of_citizenship = "SPR") AND centre_n
我定义了以下收款合同:public class Centres : List<Centre>以及为返回此集合而定义的以下操作约定public Model.Centres GetCentres() List<Centre> allCentres = (from c in Model.Centre.GetCentres