Class

# Write Python3 code here

class car():

# init method or constructor

def __init__(self, model, color):

self.model = model

self.color = color

def show(self):

print("Model is", self.model )

print("color is", self.color )

# both objects have different self which

# contain their attributes

audi = car("audi a4", "blue")

ferrari = car("ferrari 488", "green")

audi.show() # same output as car.show(audi)

ferrari.show() # same output as car.show(ferrari)

# Behind the scene, in every instance method

# call, python sends the instances also with

# that method call like car.show(audi)

Output:

Model is audi a4

color is blue

Model is ferrari 488

color is green

--------------------------------------------

#zoo.py

class Animal:

def greating(self, name):

print ("Hello.., I am %s"%name)

------------------

from "file zoo.py" import "类 Animal"

#call 类

pig = Animal()

#使用类的函数代入运算

pig.greating("Pig Torna")

>>>Hello.., I am Pig Torna

class Animal(object): # 父类， father class

def __init__(self, name):

self.name = name

def greet(self):

print ('Hello, I am %s.' % self.name)

class Dog(Animal): # 子类，inherited from fater class Animal

def greet(self):

print ('WangWang.., I am %s.' % self.name)

class Cat(Animal): # 子类，inherited from fater class Animal

def greet(self):

print ('MiaoMiao.., I am %s._.' % self.name)

def hello(“dog或cat”): # Function to call a class

dog或cat.greet() # call a method in class

--------------------------------------------

>>> hello(Dog("dog croos") # pass Name into 子类 child class

WangWang.., I am dog croos.

>>> hello(Cat("cat nancy"))

MiaoMiao.., I am cat nancy._.

menu_father.py

class meat():

def __init__(self, animal_name): # 定义变量到父类

self.name = animal_name

def meatdescription(self, meat_name, color):

print("The meat of %s is called %s, with color %s"% (self.name,

meat_name,

color))

menu_child.py

from lib.menu_father import meat

class specialMeat(meat):

def meatdescription(self, meat_name, color):

if self.name == "pig" or meat_name == "pork":

ans = input("Waring! as NO pork related should be ordered for Muslim."

"checked and continue?")

if ans == "y":

print("Please select other option")

else:

print("Error, please check again")

else:

print("The meat of %s is called %s, with color %s" % (self.name,

meat_name,

color))

runbook.py

from lib.menu_child import specialMeat

order1 = specialMeat("pigs")

order1.meatdescription("pork", "pink")