auto save

diy2.py

+class Hero:
+    def __init__(self, level, name, hp, attack):
+        self.level = level
+        self.name = name
+        self.hp = hp
+        self.attack = attack
+
+    def upgrade(self):
+        self.level += 1
+        self.hp += 50
+        self.attack += 4
+        
+yase = Hero(1,'亚瑟',100, 20)
+panda = Hero(1,'潘达', 100, 25)
+
+yase.upgrade()
+panda.upgrade()
+
+print(yase.hp)
+print(panda.hp)
+
+