auto save

diy.py

 class Hero:
     def __init__(self,name,hp,attack):
         self.level = 1
-        salf.name = name
+        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 + 4
+
 yase = Hero('亚瑟',300,20)
-houyi = Hero('后羿',240,30)
+print(yase.level)
 print(yase.hp)
-print(houyi.hp)
\ No newline at end of file
+print(yase.attack)
+yase.upgrade()
+print(yase.level)     
+print(yase.hp) 
+print(yase.attack)