Python 100天-從新手到大師學習筆記Day09:物件導向進階

電子鐘

from time import time, localtime, sleepclass Clock(object):
"""数字时钟"""
def __init__(self, hour=0, minute=0, second=0):
self._hour = hour
self._minute = minute
self._second = second
@classmethod
def now(cls):
ctime = localtime(time())
return cls(ctime.tm_hour, ctime.tm_min, ctime.tm_sec)
def run(self):
"""走字"""
self._second += 1
if self._second == 60:
self._second = 0
self._minute += 1
if self._minute == 60:
self._minute = 0
self._hour += 1
if self._hour == 24:
self._hour = 0
def show(self):
"""显示时间"""
return '%02d:%02d:%02d' % \
(self._hour, self._minute, self._second)
def main():
clock = Clock.now()
while True:
print(clock.show())
sleep(1)
clock.run()
if __name__ == '__main__':
main()

撲克牌

import randomclass Card(object):
"""一张牌"""
def __init__(self, suite, face):
self._suite = suite
self._face = face
@property
def face(self):
return self._face
@property
def suite(self):
return self._suite
def __str__(self):
if self._face == 1:
face_str = 'A'
elif self._face == 11:
face_str = 'J'
elif self._face == 12:
face_str = 'Q'
elif self._face == 13:
face_str = 'K'
else:
face_str = str(self._face)
return '%s%s' % (self._suite, face_str)

def __repr__(self):
return self.__str__()
class Poker(object):
"""一副牌"""
def __init__(self):
self._cards = [Card(suite, face)
for suite in '♠♥♣♦'
for face in range(1, 14)]
self._current = 0
@property
def cards(self):
return self._cards
def shuffle(self):
"""洗牌(随机乱序)"""
self._current = 0
random.shuffle(self._cards)
@property
def next(self):
"""发牌"""
card = self._cards[self._current]
self._current += 1
return card
@property
def has_next(self):
"""还有没有牌"""
return self._current < len(self._cards)
class Player(object):
"""玩家"""
def __init__(self, name):
self._name = name
self._cards_on_hand = []
@property
def name(self):
return self._name
@property
def cards_on_hand(self):
return self._cards_on_hand
def get(self, card):
"""摸牌"""
self._cards_on_hand.append(card)
def arrange(self, card_key):
"""玩家整理手上的牌"""
self._cards_on_hand.sort(key=card_key)
# 排序规则-先根据花色再根据点数排序
def get_key(card):
return (card.suite, card.face)
def main():
p = Poker()
p.shuffle()
players = [Player('东邪'), Player('西毒'), Player('南帝'), Player('北丐')]
for _ in range(13):
for player in players:
player.get(p.next)
for player in players:
print(player.name + ':', end=' ')
player.arrange(get_key)
print(player.cards_on_hand)
if __name__ == '__main__':
main()

工資結算系統

"""
抽象类 / 方法重写 / 多态
实现一个工资结算系统 公司有三种类型的员工
- 部门经理固定月薪12000元/月
- 程序员按本月工作小时数每小时100元
- 销售员1500元/月的底薪加上本月销售额5%的提成
输入员工的信息 输出每位员工的月薪信息
Version: 0.1
Author: 骆昊
Date: 2018-03-12
"""
from abc import ABCMeta, abstractmethodclass Employee(object, metaclass=ABCMeta):def __init__(self, name):
self._name = name
@property
def name(self):
return self._name
@abstractmethod
def get_salary(self):
pass
class Manager(Employee):# 想一想: 如果不定义构造方法会怎么样
def __init__(self, name):
# 想一想: 如果不调用父类构造器会怎么样
super().__init__(name)
def get_salary(self):
return 12000
class Programmer(Employee):def __init__(self, name):
super().__init__(name)
def set_working_hour(self, working_hour):
self._working_hour = working_hour
def get_salary(self):
return 100 * self._working_hour
class Salesman(Employee):def __init__(self, name):
super().__init__(name)
def set_sales(self, sales):
self._sales = sales
def get_salary(self):
return 1500 + self._sales * 0.05
if __name__ == '__main__':
emps = [Manager('武则天'), Programmer('狄仁杰'), Salesman('白元芳')]
for emp in emps:
if isinstance(emp, Programmer):
working_hour = int(input('请输入%s本月工作时间: ' % emp.name))
emp.set_working_hour(working_hour)
elif isinstance(emp, Salesman):
sales = float(input('请输入%s本月销售额: ' % emp.name))
emp.set_sales(sales)
print('%s本月月薪为: ¥%.2f元' % (emp.name, emp.get_salary()))

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Machine Learning / Deep Learning / Python / Flutter cakeresume.com/yanwei-liu

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