auto save

diy.py

+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+10
+
+yase=Hero("亚瑟",300,20)
+diaocan=Hero('貂蝉',400,50)
+print(yase.level)
+yase.upgrade()
+diaocan.upgrade()
+print(yase.level)
+
+