diff --git a/EssOS/技术笔记.md b/EssOS/技术笔记.md
index 27aef4f..ba3e3ea 100644
--- a/EssOS/技术笔记.md
+++ b/EssOS/技术笔记.md
@@ -135,5 +135,14 @@ public class JavaCollectionExample2 {
 输出结果：
 
 ```java
+集合: [11, 12, 13, 14, 15]
+11
+12
+13
+14
+15
+集合为空
+集合中的元素: [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20]
+5的倍数: [5, 10, 15, 20]
 ```