diff --git a/src/com/exmple/service/ThreadA.java b/src/com/exmple/service/ThreadA.java
index 72d01d8..14f5a32 100644
--- a/src/com/exmple/service/ThreadA.java
+++ b/src/com/exmple/service/ThreadA.java
@@ -18,5 +18,6 @@ public ThreadA(HasSelfPrivateNum numRef) {
     public void run() {
         super.run();
         numRef.addI("a");
+        System.out.println("测试分支合并");
     }
 }
diff --git a/src/com/exmple/thread/demo/Demo.java b/src/com/exmple/thread/demo/Demo.java
new file mode 100644
index 0000000..f66dcb6
--- /dev/null
+++ b/src/com/exmple/thread/demo/Demo.java
@@ -0,0 +1,10 @@
+package com.exmple.thread.demo;
+
+/**
+ * Created by cwl on 2018/7/31.
+ */
+public class Demo {
+    public static void main(String[] args){
+        System.out.println("测试分支用的");
+    }
+}
diff --git a/src/com/exmple/thread/notice/MyList.java b/src/com/exmple/thread/notice/MyList.java
index 23546d2..a61952b 100644
--- a/src/com/exmple/thread/notice/MyList.java
+++ b/src/com/exmple/thread/notice/MyList.java
@@ -13,6 +13,7 @@ public class MyList {
 
     public void add(){
         list.add("陈文龙");
+        System.out.println("测试分支合并");
     }
     public int sized(){
        return list.size();