auto save

diy2.py

+class Hero:
+    def __init__( self , name , hp , attack ):
+        self.level = 1
+        self.name = name 
+        self.hp = hp
+        self.attack = attack
+def upgrade():
+    yase.level += 1
+    yase.hp += 50
+    yase.attack += 4
+houyi = Hero("后羿",250,23)
+yase = Hero("亚瑟",300,20)
+upgrade()
+upgrade()
+print( yase.name )
+print( yase.level )