save project

diy2.py

@@ -5,11 +5,11 @@ class Hero:
         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)
-
-
-upgrade()
-print(yase.hp)
\ No newline at end of file
+yase.upgrade()
+print(yase.attack)
\ No newline at end of file