diff --git a/src/main/java/com/fanco/learn_datastruct_leetcode/juc/SynchronizeWaitNotifyDemo.java b/src/main/java/com/fanco/learn_datastruct_leetcode/juc/SynchronizeWaitNotifyDemo.java
index 0b47951ea41751cfc1c3d6eb4a233bba74aca3f8..1c1ba11096052d352ca2acf3380489051753abb7 100644
--- a/src/main/java/com/fanco/learn_datastruct_leetcode/juc/SynchronizeWaitNotifyDemo.java
+++ b/src/main/java/com/fanco/learn_datastruct_leetcode/juc/SynchronizeWaitNotifyDemo.java
@@ -37,7 +37,7 @@ public class SynchronizeWaitNotifyDemo {
 
                     System.out.println(thread_1.getName() + "被唤醒前的状态是" + thread_1.getState());
 
-                    lock.notifyAll();
+                    lock.notifyAll();//线程状态从 wating->blocked  等待队列到同步队列
 
                     for (int i = 0; i < 5; i++) {
                         System.out.println("线程"+thread_1.getName()+"的状态是" + thread_1.getState());
@@ -49,6 +49,7 @@ public class SynchronizeWaitNotifyDemo {
                     }
 
                     System.out.println(Thread.currentThread().getName()+"线程运行结束");
+                    //lock.notifyAll();
                 } catch (Exception e) {
                     e.printStackTrace();
                 }