save project

diy2.py

@@ -5,10 +5,10 @@ class Hero:
         self.hp=hp
         
 
-def upgrade():
-    yase.level=yase.level+1
-    yase.hp=yase.hp+50
-    yase.attack=yase.attack+4
+    def upgrade(self):
+        self.level=self.level+1
+        self.hp=self.hp+50
+        self.attack=self.attack+4
 
 houyi=Hero("后羿",240,23)
 houyi.upgrade()