auto save

diy2.py

@@ -4,15 +4,15 @@ class Hero:
         self.name=name
         self.hp=hp
         self.attack=attack
-def a(self):
-    self.level=self.level+1
-    self.hp=self.hp+100
-    self.attack=self.attack+4
+    def a(self):
+        self.level += 1
+        self.hp += 100
+        self.attack += 4
 
 yase = Hero("垭瑟",300,20)
 houyi = Hero("后羿",200,40)
 
-a()
+Hero.a(yase)
 
 print(yase.level)
 print(yase.hp)