auto save

diy2.py

+class hero:
+    def __init__(self,name,hp,attack):
+        self.level=1
+        self.name=name
+        self.hp=hp
+        self.attack=attack
+zhouyu=hero('周瑜',240,30)
+zhangfei=hero('张飞',300,40)
+def upgrade():
+    zhouyu.level+=1
+    zhouyu.hp+=20
+    zhouyu.attack+=10
+
+upgrade()
+print(zhouyu.name)
+print(zhouyu.hp)
+print(zhouyu.attack)
+print(zhangfei.name)
+print(zhangfei.hp)
+print(zhangfei.attack)