auto save

diy2.py

-class Hero:
+class Hero():
     def __init__(self,name,hp,attack):
         self.level=1
         self.name=name
         self.hp=hp
         self.attack=attack
     def upgrade(self):
-        self.level=self.level+1
-        self.hp=self.hp+50
-        self.attack=self.attack+20
+        self.level=self.level+2
+        self.hp=self.hp+1000
+        self.attack=self.attack+5000
 
 
 yase=Hero("亚瑟",300,20)