auto save

pp.py

+class Cat:
+    def __init__(self):
+        self.footNum=4
+        self.eyeNum=2
+        self.head=1
+        self.earsNum=2
+        self.skin="black"
+    def run(self):
+        print("猫跑起来")
+    def skill(self,prey):
+        print("猫抓住快乐健康了吗，mlkjm
+        "+prey)
+role=Cat()
+role.skill("老鼠")
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