auto save

nn.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+5
+yase=Hero("亚瑟",300,20)
+houyi=Hero("后羿",250,23)
+print("亚瑟的等级为：",yase.level)
+print("后羿的血量为：",houyi.hp)
+yase.upgrade()
+houyi.upgrade()
+print("升级后亚瑟的等级为",yase.level)
+print("升级后后羿的血量为",houyi.hp)
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