save project

diy2.py

@@ -5,10 +5,10 @@ class hero:
        self.hp = hp
        self.attack = attack
 
-def upgrade():
-    chenshi.level = chenshi.level+1
-    chenshi.hp = chenshi.hp +50
-     chenshi.attack + 4
+def upgrade(self):
+    self.level = chenshi.level + 1
+    self.hp = chenshi.hp +50
+    self.attack + 4
 
 chenshi = hero("陈石"300,20)
 print(chenshi.name+"一级攻击力是"+str(chenshi.attack))