diff --git a/diy1.py b/diy1.py
index 0735a44..1a8b9f3 100644
--- a/diy1.py
+++ b/diy1.py
@@ -3,3 +3,7 @@
 #要求这个函数能计算1+2+3+……+num的结果
 
 
+def sum_number(number):
+    if number==1:
+    sum=sum_number()
+