From c623123a400745e8b59f4e4135e6c3967bfc1029 Mon Sep 17 00:00:00 2001
From: Vip-Augus <850366301@qq.com>
Date: Sun, 30 Jun 2019 14:30:15 +0800
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---
 spring-analysis-note/note/2019-06-30-spring-analysis-note-7.md | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/spring-analysis-note/note/2019-06-30-spring-analysis-note-7.md b/spring-analysis-note/note/2019-06-30-spring-analysis-note-7.md
index 44466ba2..b67586ea 100644
--- a/spring-analysis-note/note/2019-06-30-spring-analysis-note-7.md
+++ b/spring-analysis-note/note/2019-06-30-spring-analysis-note-7.md
@@ -406,6 +406,8 @@ getApplicationEventMulticaster().multicastEvent(applicationEvent, eventType);
 
 **也可以通过广播事件，定义事件和监听器，在监听器中实现业务逻辑，由于不是直接调用监听器，而是通过事件广播器进行中转，达到了代码解耦的效果。**
 
+**所以在之后的代码设计和编写中，在整体设计上，有必要的话，考虑在更高的抽象层要预留扩展功能，然后让子类重载或者实现，实现扩展的功能。**
+
 ---
 **由于个人技术有限，如果有理解不到位或者错误的地方，请留下评论，我会根据朋友们的建议进行修正**