diff --git a/Demo-Service/1、事件同步/event_clrblk.c b/Demo-Service/1、事件同步/event_clrblk.c
index 30a88283..548ece91 100644
--- a/Demo-Service/1、事件同步/event_clrblk.c
+++ b/Demo-Service/1、事件同步/event_clrblk.c
@@ -19,7 +19,7 @@
  | pClearBlock(task) | 中断中清除阻塞 - FLAG服务   |
  *-------------------------------------------------*/
 
-#if 1 /* 编译开关 */
+#if 0 /* 编译开关 */
 
 #include "CosyOS.H"