save project

diy.py

@@ -5,7 +5,7 @@ class Hero:
         self.hp=hp
         self.attack=attack
     def upgrade(self):
-        self.level=yase.level=1
+        self.level=yase.level+1
         self.hp=yase.hp+50
         self.attack=yase.attack+4
 houyi = Hero("后裔",300,20)