Python继承

 

创建一个父类：

class Humen():

sum = 0

def __init__(self,name,age):

self.name = name

self.age = age

self.__class__.sum += 1

def demo(self):

print(self.name)

def do_homework(self):

print('this is father')

 

创建一个子类

 

from c4 import Humen

'''

继承：

class Student(Humen):

# pass

def do_homewor(self):

print('this')

Student1 = Student('lin xue',18)

print(Student.sum)

print(Student1.demo())

print(Student1.name)

print(Student1.age)

继承父类的时候语法为 class 类名（父类名）

'''

class Student(Humen):

def __init__(self,school,name,age):

self.school = school

# 用类调用父类的参数进行实例化

# Humen.__init__(self,name,age)

# 另外一种调用父类的参数

super(Student,self).__init__(name,age)

# pass

def do_homewor(self):

super(Student,self).do_homework

print('this is sun')

Student1 = Student('xianligong','lin xue',18)

# print(Student.sum)

# print(Student1.demo())

# print(Student1.name)

# print(Student1.age)

# print(Student.school)

# print(Student1.school)

print(Student1.do_homework())