mirror of
https://github.com/pocketpy/pocketpy
synced 2025-11-08 20:50:16 +00:00
103 lines
2.8 KiB
Python
103 lines
2.8 KiB
Python
'''
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object
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timedelta
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tzinfo
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timezone
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time
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date
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datetime
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'''
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import builtins
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MINYEAR = 1
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MAXYEAR = 9999
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MONTH_DAYS = [-1, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31]
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def is_leap(year):
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return (year % 4 == 0 and year % 100 != 0) or year % 400 == 0
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class timedelta:
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def __init__(self, days=0, seconds=0, microseconds=0,
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milliseconds=0, minutes=0, hours=0, weeks=0):
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days += 7 * weeks
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seconds += 60 * minutes + 3600 * hours
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microseconds += 1000 * milliseconds #微秒 = 1000*毫秒
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if microseconds >= 1000000:
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seconds += microseconds // 1000000
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microseconds %= 1000000
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if seconds >= 3600 * 24:
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days += seconds // (3600 * 24)
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seconds %= (3600 * 24)
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if builtins.abs(days) > 999999999:
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raise OverflowError('timedelta # of days is Overflow')
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self.days = days
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self.second = seconds
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self.microseconds = microseconds
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def __str__(self):
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s = 'datetime.timedelta(days=' + str(self.days) + ', '
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s += 'seconds=' + str(self.second) + ', '
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s += 'microseconds=' + str(self.microseconds) + ')'
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return s
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def __add__(self, other):
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if isinstance(other, timedelta):
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return timedelta(days = self.days + other.days,
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seconds = self.second + other.second,
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microseconds = self.microseconds + other.microseconds)
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return NotImplemented
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def __sub__(self, other):
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if isinstance(other, timedelta):
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return timedelta(days = self.days - other.days,
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seconds = self.second - other.second,
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microseconds = self.microseconds - other.microseconds)
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return NotImplemented
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def __neg__(self):
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return timedelta(days = -self.days,
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seconds = -self.second,
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microseconds= -self.microseconds)
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def __pos__(self):
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return self
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def __abs__(self):
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if self._days < 0:
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return -self
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else:
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return self
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class tzinfo:
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pass
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class timezone(tzinfo):
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pass
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class time:
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pass
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class date:
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def __init__(self, year=None, month=None, day=None):
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if year < MINYEAR or year > MAXYEAR:
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raise ValueError('year must be in [1, 9999]')
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if month < 1 or month > 12:
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raise ValueError('month must be in [1, 12]')
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_max_day = MONTH_DAYS[month]
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if month == 2 and is_leap(year):
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_max_day += 1
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if day < 1 or day > _max_day:
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raise ValueError('day must be in [1, ', MONTH_DAYS[month], ']')
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self.year = year
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self.month = month
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self.day = day
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def today(self):
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pass
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class datetime(date):
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pass
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