save project

diy2.py

@@ -4,11 +4,10 @@ class Hero:
         self.name = name
         self.hp = hp
         self.attack = attack
-
-def upgrades():
-    yase.lever = yase.lever + 1
-    yase.hp = yase.hp + 50
-    yase.attack = yase.attack + 4  
+    def upgrades(self):
+        self.lever = self.lever + 1
+        self.hp = self.hp + 50
+        self.attack = self.attack + 4  
 
 yase = Hero("亚瑟", 300, 20)
 houyi = Hero("后羿", 250, 23)
@@ -18,7 +17,7 @@ print ("亚瑟的名字是:",yase.name)
 print ("亚瑟的血量是:",yase.hp)
 print ("亚瑟的攻击力是:",yase.attack)
 
-upgrades()
+yase.upgrades()
 
 print ("\n(升级之后)")
 print ("亚瑟的等级是:",yase.lever)