diff --git a/s-day10/src/com/inmind/object_stream03/Test11.java b/s-day10/src/com/inmind/object_stream03/Test11.java
new file mode 100644
index 0000000..a4f69ca
--- /dev/null
+++ b/s-day10/src/com/inmind/object_stream03/Test11.java
@@ -0,0 +1,38 @@
+package com.inmind.object_stream03;
+
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.ObjectInputStream;
+import java.io.ObjectOutputStream;
+import java.util.ArrayList;
+
+/*
+序列化流的练习
+
+需求:
+1. 将存有多个自定义对象的集合序列化操作，保存到list.txt文件中。
+2. 反序列化list.txt ，并遍历集合，打印对象信息。
+ */
+public class Test11 {
+    public static void main(String[] args) throws Exception {
+        //1. 将存有多个自定义对象的集合序列化操作，保存到list.txt文件中。
+        ArrayList<Student> lists = new ArrayList<>();
+        lists.add(new Student("张三1", 18));
+        lists.add(new Student("张三2", 19));
+        lists.add(new Student("张三3", 20));
+        lists.add(new Student("张三4", 21));
+
+        ObjectOutputStream oos = new ObjectOutputStream(new FileOutputStream("list.txt"));
+        oos.writeObject(lists);
+        oos.close();
+        //2. 反序列化list.txt ，并遍历集合，打印对象信息。
+        ObjectInputStream ois = new ObjectInputStream(new FileInputStream("list.txt"));
+        Object o = ois.readObject();
+        if (o instanceof ArrayList) {
+            ArrayList<Student> students = (ArrayList<Student>) o;
+            for (Student s : students) {
+                System.out.println(s);
+            }
+        }
+    }
+}