diff --git a/worldsrv/scene.go b/worldsrv/scene.go
index d28a99b..a23bafa 100644
--- a/worldsrv/scene.go
+++ b/worldsrv/scene.go
@@ -341,7 +341,7 @@ func (this *Scene) PlayerEnter(p *Player, pos int, ischangeroom bool) bool {
 				//离场金币
 				leaverng := this.dbGameFree.GetRobotLimitCoin()
 				if len(leaverng) >= 2 {
-					leaveCoin = leaverng[0] + rand.Int63n(leaverng[1]-leaverng[0])
+					leaveCoin = int64(common.RandInt(int(leaverng[0]), int(leaverng[1])))
 				}
 			}