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SolarHalfYear.py
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66 lines (51 loc) · 1.65 KB
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# -*- coding: utf-8 -*-
from math import ceil
from . import SolarMonth
class SolarHalfYear:
"""
阳历半年
"""
MONTH_COUNT = 6
def __init__(self, year, month):
self.__year = year
self.__month = month
@staticmethod
def fromDate(date):
return SolarHalfYear(date.year, date.month)
@staticmethod
def fromYm(year, month):
return SolarHalfYear(year, month)
def getYear(self):
return self.__year
def getMonth(self):
return self.__month
def toString(self):
return "%d.%d" % (self.__year, self.getIndex())
def toFullString(self):
return "%d年%s半年" % (self.__year, ("上" if 1 == self.getIndex() else "下"))
def __str__(self):
return self.toString()
def getIndex(self):
"""
获取当月是第几半年
:return: 半年序号，从1开始
"""
return int(ceil(self.__month * 1.0 / SolarHalfYear.MONTH_COUNT))
def getMonths(self):
"""
获取本半年的阳历月列表
:return: 阳历月列表
"""
months = []
index = self.getIndex() - 1
for i in range(0, SolarHalfYear.MONTH_COUNT):
months.append(SolarMonth.fromYm(self.__year, SolarHalfYear.MONTH_COUNT * index + i + 1))
return months
def next(self, half_years):
"""
半年推移
:param half_years: 推移的半年数，负数为倒推
:return: 推移后的半年
"""
m = SolarMonth.fromYm(self.__year, self.__month).next(SolarHalfYear.MONTH_COUNT * half_years)
return SolarHalfYear.fromYm(m.getYear(), m.getMonth())