diff --git a/EssOS/项目分析.md b/EssOS/项目分析.md
index 76c9dd2..819417b 100644
--- a/EssOS/项目分析.md
+++ b/EssOS/项目分析.md
@@ -34,7 +34,6 @@ sequenceDiagram
 
 ```flow
 str=>start: Start
-end=>end
 op=>operation: 领导
 cond=>condition: 是否提交