Python继承的代码示例

#单继承
class Person(object):
 def __init__(self,name,age,height,weight):
 self.name = name
 self.age = age
 self.height = height
 self.weight = weight
 def eat(self):
 print("eating")
 def walk(self):
 print("walking")
 def __str__(self):
 return "name:%s,age:%d"%(self.name,self.age)

from person import Person
class Student(Person):
 def __init__(self,name,age,height,weight):
 #调用父类中的属性
 super(Student,self).__init__(name,age,height,weight)
 def studey(self):
 print("studying")

from student import Student
stu = Student("tom",25,252,63)
print(stu.name)

#多继承
注意，当self.money = money编程私有属性时，即self.__money会出现报错现象
，说明私有属性不能直接继承

class Father(object):
 def __init__(self,money):
 self.money = money
 def eat (self):
 print("eating")
 
class Mother(object):
 def __init__(self,facevalue):
 self.facevalue = facevalue
 def sleep(self):
 print("slepping")
 
from father import Father
from mother import Mother
class Child(Father,Mother):
 def __init__(self,money,facevalue):
 Father.__init__(self,money)
 Mother.__init__(self,facevalue)
 def study(self):
 print("studing")
 
 from child import Child
def main():
 ch = Child(5,"NICE")
 print(ch.money,ch.facevalue)
if __name__=='__main__':
 main()