auto save

diy2.py

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