diff --git a/functions03.png b/functions03.png
deleted file mode 100644
index d0aef207..00000000
Binary files a/functions03.png and /dev/null differ
diff --git a/functions04.png b/functions04.png
new file mode 100644
index 00000000..48b01f8c
Binary files /dev/null and b/functions04.png differ
diff --git a/readme.md b/readme.md
index 944d81ad..8deb5c9d 100644
--- a/readme.md
+++ b/readme.md
@@ -64,7 +64,7 @@ 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/functions03.png?raw=true"/>
+  <img src="https://github.com/2881099/FreeSql/blob/master/functions04.png?raw=true"/>
 </p>
 
 # Quick start