# -*- coding: utf-8 -*-
"""
Created on Fri Sep 23 20:42:58 2022
@author: Administrator
"""
import time
import datetime
def days360(start_date, end_date, method_eu=False):
"""
功能：同excel中函数，=DAYS360(B452,A452,0)
"""
start_date = datetime.datetime.strptime(start_date,"%Y-%m-%d")
end_date = datetime.datetime.strptime(end_date,"%Y-%m-%d")
start_day = start_date.day
start_month = start_date.month
start_year = start_date.year
end_day = end_date.day
end_month = end_date.month
end_year = end_date.year
if (
start_day == 31 or
(
method_eu is False and
start_month == 2 and (
start_day == 29 or (
start_day == 28 and
((start_year%4==0) and (start_year%100 !=0) or (start_year%400)==0) #闰年
)
)
)
):
start_day = 30
if end_day == 31:
if method_eu is False and start_day != 30:
end_day = 1
if end_month == 12:
end_year += 1
end_month = 1
else:
end_month += 1
else:
end_day = 30
return (
end_day + end_month * 30 + end_year * 360 -
start_day - start_month * 30 - start_year * 360)
days360('2020-02-28','2021-02-22')
