A.NoneB.TopC.LeftD.Manual
A.NormalB.MinC.MaxD.以上都不是
A.private static string DBConnectString ="server=.;database=FreshLiveDB;uid=sa;pwd=123;";B.private static string DBConnectString ="server=.;database=FreshLiveDB;id=sa;pwd=123;";C.private static string DBConnectString ="server=.;database=FreshLiveDB;id=sa;password=123;";D.private static string DBConnectString ="server=.;database=FreshLiveDB;name=sa;pwd=123;";