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python类继承,PHP怎么实现 #34

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@waojie

例如Python有个类

class Animal(object):
   def __init__(self, name, age):
       self.name = name
       self.age = age

   def call(self):
       print(self.name, '会叫')

php怎么实现Cat类继承Animal呢?

class Cat(Animal):
   def __init__(self,name,age,sex):
       super(Cat, self).__init__(name,age)  # 不要忘记从Animal类引入属性
       self.sex=sex

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