CoCalc Logo Icon
StoreFeaturesDocsShareSupportNewsAboutSign UpSign In
jackfrued

CoCalc provides the best real-time collaborative environment for Jupyter Notebooks, LaTeX documents, and SageMath, scalable from individual users to large groups and classes!

GitHub Repository: jackfrued/Python-100-Days
 Path: blob/master/Day01-15/code/Day08/clock.py
Views: 729
1
"""

2
定义和使用时钟类

3


4
Version: 0.1

5
Author: 骆昊

6
Date: 2018-03-08

7
"""

8


9
import time

10
import os

11


12


13
class Clock(object):

14


15
    # Python中的函数是没有重载的概念的

16
    # 因为Python中函数的参数没有类型而且支持缺省参数和可变参数

17
    # 用关键字参数让构造器可以传入任意多个参数来实现其他语言中的构造器重载

18
    def __init__(self, **kw):

19
        if 'hour' in kw and 'minute' in kw and 'second' in kw:

20
            self._hour = kw['hour']

21
            self._minute = kw['minute']

22
            self._second = kw['second']

23
        else:

24
            tm = time.localtime(time.time())

25
            self._hour = tm.tm_hour

26
            self._minute = tm.tm_min

27
            self._second = tm.tm_sec

28


29
    def run(self):

30
        self._second += 1

31
        if self._second == 60:

32
            self._second = 0

33
            self._minute += 1

34
            if self._minute == 60:

35
                self._minute = 0

36
                self._hour += 1

37
                if self._hour == 24:

38
                    self._hour = 0

39


40
    def show(self):

41
        return '%02d:%02d:%02d' % (self._hour, self._minute, self._second)

42


43


44
if __name__ == '__main__':

45
    # clock = Clock(hour=10, minute=5, second=58)

46
    clock = Clock()

47
    while True:

48
        os.system('clear')

49
        print(clock.show())

50
        time.sleep(1)

51
        clock.run()

52


53