save project

diy2.py

@@ -4,12 +4,12 @@ class Hero:
         self.name=name
         self.hp=hp
         self.attack=attack
-def upgrade():
-    yase.level=self.level+1
-    yase.hp=self.hp+1
-    yase.attack=self.attack+1
+def upgrade(self):
+    self.level=self.level+1
+    self.hp=self.hp+1
+    self.attack=self.attack+1
 yase=Hero('yase',300,20)
 houyi=Hero('houyi',250,23)
 print("yase的攻击力为",yase.attack)
-upgrade()
+houyi.upgrade()
 print("houyi的攻击力为",houyi.attack)
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