auto save

diy.py

@@ -7,10 +7,10 @@ class Hero:
 
 yase=Hero("亚瑟",300,20)
 
-def upgrade():
-    yase.level=yase.level+1
-    yase.hp=yase.hp+150
-    yase.attack=yase.attack+100
+def upgrade(self):
+    self.level=self.level+1
+    self.hp=self.hp+150
+    self.attack=self.attack+100
 
 upgrade()