linq 俩表联合

var list = db.T_Class.Join(db.T_Cls, TT => TT.Cid, tt => tt.Cid, (TT, tt) => new InnerJOIN {
Cid=TT.Cid,
class="TT".Class,
ClassID=TT.ClassID,
Table=tt.Table,
time=TT.time


});