如果文件室不存在于CheckIn表中,则ot将返回状态为空。所以我想把代码转换成LINQ。下面是我的LINQ代码:join w in Rooms on b.RoomsId equals w.Idjoin p in GuestBeds on b.Id equals p.BedId
join a in CheckInon p.Id equal
p0=%7B&p1=invalid%20key&p2=2&p3=%7B%7Bcampaign.paused%7D%7D&p4=%7Bcampaign.paused%7D%7D at Error (原生)at at gb.throwError () at gb.object () at gb.primary () at gb.unary () at gb.multiplicative () at gb加成剂() at <