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 up(self):
+        self.level += 1
+        self.hp += 50
+        self.attack += 4
+yase = Hero('yase',300,20)
+houyi = Hero('houyi',250,23)
+yase.up()
+houyi.up()
+print(yase.level)
+print(houyi.level)