diff --git a/EssOS/技术笔记.md b/EssOS/技术笔记.md
index cfdc538..76e088e 100644
--- a/EssOS/技术笔记.md
+++ b/EssOS/技术笔记.md
@@ -148,6 +148,10 @@ public class JavaCollectionExample2 {
 5的倍数: [5, 10, 15, 20]
 ```
 
+----
+
+实现：登录和校验
+