[Python知识库]python——面向对象（继承）

import sys, os
sys.path.append(os.path.dirname(os.path.abspath(__file__)))



from p1 import Person



class Student(Person):
    def  __init__(self,name,height,stno,school):
        super().__init__(name,height)  #super为继承父类的属性
        self.stno =stno
        self.school=school

    def do_homework(self):#子类私有的属性
        print('我是'+self.name+'我在'+self.school+'上学，我在写作业')

class Person:
    '''这是人类，使学生和工人的父亲，人类有名字和升高，可以跑步和说话'''

    def __init__(self, name, height):
        super.__init__(name,height)
        self.name = name
        self.height = height

    def run(self):
        print(self.name + '在跑步。')

    def say(self):
        print(self.name + '在说话。')

import sys, os
sys.path.append(os.path.dirname(os.path.abspath(__file__)))


from p1 import Person


class Worker(Person):

    def __init__(self,name,height,factory):
        super().__init__(name,height)
        self.factory=factory

    def work(self):
        print('我是'+self.name+'我在'+self.factory+'工作')

    # def say(self):
    #     print(self.name + '在说话。')

最后运行调用的代码?

import sys, os
sys.path.append(os.path.dirname(os.path.abspath(__file__)))


from w1 import Worker
#
#
# student = Student('堂七七',175,'180','解放小学')
#
# student.do_homework()
# print(student.name)
# print(student.height)
#
# student.say()
# student.run()

worker=Worker('堂七七',185,'欧亚卖场')
worker.work()
#
# work.say()
# worker.run()

from ch3.w1 import Worker报错

错误? modulenotfounderror: no module named 'ch3'

如果不放心自己目录有没有导入，或者报错，可以添加以下两行代码，一步解决问题。

import sys, os
sys.path.append(os.path.dirname(os.path.abspath(__file__)))