auto save

diy2.py

@@ -6,9 +6,9 @@ class Hero:
 yase=Hero("垭瑟",300,20)
 houyi=Hero("后羿",250,23)
 def upgrade():
-    yase.level+=1
-    yase.hp+=50    
-    yase.attack+=4
+    self.level+=1
+    self.hp+=50    
+    self.attack+=4
 upgrade()  
 print(yase.hp)
 print(houyi.hp)
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