diff --git a/functions02.png b/functions02.png
deleted file mode 100644
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diff --git a/functions03.png b/functions03.png
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diff --git a/readme.md b/readme.md
index 8f19786d..c0319a0a 100644
--- a/readme.md
+++ b/readme.md
@@ -63,7 +63,7 @@ FreeSql 是一个功能强大的对象关系映射程序(O/RM)，支持 .NETCore
 | FreeSql.Extensions.BaseEntity | NETStandard2.0 |
 
 <p align="center">
-  <img src="https://github.com/2881099/FreeSql/blob/master/functions02.png?raw=true"/>
+  <img src="https://github.com/2881099/FreeSql/blob/master/functions03.png?raw=true"/>
 </p>
 
 # Quick start