diff --git a/modules/practice/api_enrolled.go b/modules/practice/api_enrolled.go
index 5e4a96572..380fd247f 100644
--- a/modules/practice/api_enrolled.go
+++ b/modules/practice/api_enrolled.go
@@ -18,7 +18,7 @@ func (this *apiComp) Enrolled(session comm.IUserSession, req *pb.PracticeEnrolle
 
 	var (
 		err  error
-		hero *pb.DBHero
+		hero []*pb.DBHero
 		room *pb.DBPracticeRoom
 	)
 
@@ -32,7 +32,7 @@ func (this *apiComp) Enrolled(session comm.IUserSession, req *pb.PracticeEnrolle
 		}
 		room.Full[req.Group]++
 	} else {
-		if hero, err = this.module.ModuleHero.QueryCrossHeroinfo(req.Hero); err != nil {
+		if hero, err = this.module.ModuleHero.QueryCrossMultipleHeroinfo(req.Hero); err != nil {
 			code = pb.ErrorCode_ReqParameterError
 			return
 		}
@@ -40,7 +40,10 @@ func (this *apiComp) Enrolled(session comm.IUserSession, req *pb.PracticeEnrolle
 		if code = this.module.ModuleHero.RegisterInstructor(session, req.Hero, req.Group); code != pb.ErrorCode_Success {
 			return
 		}
-		room.Full[hero.Fulllvenr]--
+		for _, v := range hero {
+			room.Full[v.Fulllvenr]--
+		}
+
 	}
 
 	this.module.modelPandata.Change(session.GetUserId(), map[string]interface{}{