diff --git a/playground/Demo/Demo28/Main.snow b/playground/Demo/Demo28/Main.snow
index 255da08..3ce709a 100644
--- a/playground/Demo/Demo28/Main.snow
+++ b/playground/Demo/Demo28/Main.snow
@@ -22,7 +22,6 @@ module: Main
             end body
         end function
 
-
     // 程序入口
     function: main
         returns: void
@@ -30,4 +29,4 @@ module: Main
             // 实例化一个叫A的Animal,并且调用构造函数
 			declare a: Animal = new Animal("GenericAnimal")
     end function
-end module
+end module
\ No newline at end of file