diff --git a/diy3.py b/diy3.py
index fae9d91..967804b 100644
--- a/diy3.py
+++ b/diy3.py
@@ -1,7 +1,7 @@
 message = "诺依，周末一起去看动漫展吧！"
 a=len(message)
 b=0
-while b<a
+while b<a:
     print(message[b])
     b+=1