diff --git a/Demo-Service/4、重入访问/reent_semaph.c b/Demo-Service/4、重入访问/reent_semaph.c
index 9e16be9e..38bcbfeb 100644
--- a/Demo-Service/4、重入访问/reent_semaph.c
+++ b/Demo-Service/4、重入访问/reent_semaph.c
@@ -6,10 +6,10 @@
  * @note     可实现超时处理机制。
  * @author   迟凯峰
  * @version  V1.0.0
- * @date     2025.10.25
+ * @date     2026.07.31
  ******************************************************************************/
 
-#if 1 /* 编译开关 */
+#if 0 /* 编译开关 */
 
 #include "CosyOS.H"