save project

diy.py

@@ -5,9 +5,12 @@ class Hero:
         self.hp = hp
         self.hp = hp
         self.attack = attack
         self.attack = attack
 
 
-def upgrade():
-    yase.hp += 50
-    yase.attack += 20
-    yase.level += 1
+    def upgrade(self):
+        self.hp += 50
+        self.attack += 20
+        self.level += 1
 yase = Hero("yase",300,20)
 yase = Hero("yase",300,20)
 houyi = Hero("houyi",250,23)
 houyi = Hero("houyi",250,23)
+print(yase.level)
+yase.upgrade()
+print(yase.level)
\ No newline at end of file