diff --git a/FSM_OOP/usr/keyFSM.c b/FSM_OOP/usr/keyFSM.c
index faf13a7..6f15762 100644
--- a/FSM_OOP/usr/keyFSM.c
+++ b/FSM_OOP/usr/keyFSM.c
@@ -10,15 +10,14 @@
 */
 
 static Event selectEvent(KeyFSMData *data){   // 必须重新实现
+
     if(data->countDelay == 10){
         return HoldCount4;
     }
-
-    if(data->countDelay == 5){
+    else if(data->countDelay == 5){
         return DelayCount3;
     }
-
-    if(data->in == Up){
+    else if(data->in == Up){
         return PhsicalUp;
     }
     else{