save project

diy2.py

@@ -4,10 +4,10 @@ class Hero:
         self.name = name
         self.hp = hp
         self.attack = attack
-     def upgrade():       
-       seif.level=seif.leve1+1
-       seif.hp=seif.hp + 50
-       seif.attack=seif.attack + 4
+    def upgrade(self):       
+        self.level=self.leve1+1
+        self.hp=self.hp + 50
+        slif.attack=self.attack + 4
 houyi = Hero("后羿",240,23)
 houyi.upgrade()
 print("血量为：",houyi.level)