Data Source=.;Initial Catalog=examweisha_dev;User ID=sa;password=Sa123456; Data Source=192.168.1.212;Initial Catalog=examweisha;User ID=sa;password=sa; Data Source=.;Initial Catalog=Quesbank;User ID=sa;password=Sa123456; Data Source=.;Initial Catalog=examweisha;User ID=sa;password=Sa123456; E:\SourceCode\01_LearningSystem\培训考试系统\Song.Entities