52 lines
1.3 KiB
Python
52 lines
1.3 KiB
Python
"""
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定义和使用时钟类
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Version: 0.1
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Author: 骆昊
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Date: 2018-03-08
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"""
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import time
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import os
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class Clock(object):
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# Python中的函数是没有重载的概念的
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# 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
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# 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
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def __init__(self, **kw):
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if 'hour' in kw and 'minute' in kw and 'second' in kw:
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self._hour = kw['hour']
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self._minute = kw['minute']
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self._second = kw['second']
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else:
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tm = time.localtime(time.time())
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self._hour = tm.tm_hour
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self._minute = tm.tm_min
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self._second = tm.tm_sec
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def run(self):
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self._second += 1
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if self._second == 60:
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self._second = 0
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self._minute += 1
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if self._minute == 60:
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self._minute = 0
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self._hour += 1
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if self._hour == 24:
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self._hour = 0
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def show(self):
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return '%02d:%02d:%02d' % (self._hour, self._minute, self._second)
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if __name__ == '__main__':
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# clock = Clock(hour=10, minute=5, second=58)
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clock = Clock()
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while True:
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os.system('clear')
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print(clock.show())
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time.sleep(1)
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clock.run()
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