save project

diy2.py

@@ -4,14 +4,434 @@ class Hero:
         self.name=name
         self.hp=hp
         self.attack=attack
-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  
 yase=Hero('亚瑟',300,20)
 houyi=Hero('后羿',250,23)
 print(yase.attack)
 
-upgrade()
-print(yase.attack)
\ No newline at end of file
+yase.upgrade()
+print(yase.attack)
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