如何计算所有日期的4天时段总和？

import datetime

def calculate_4day_period_sum(start_date, end_date):
    total_sum = 0
    current_date = start_date

    while current_date <= end_date:
        period_sum = calculate_period_sum(current_date)
        total_sum += period_sum
        current_date += datetime.timedelta(days=1)

    return total_sum

def calculate_period_sum(date):
    start_time = datetime.datetime.combine(date, datetime.time(0, 0, 0))
    end_time = start_time + datetime.timedelta(days=3, hours=23, minutes=59, seconds=59)
    period_sum = (end_time - start_time).total_seconds()

    return period_sum

# 示例使用
start_date = datetime.date(2022, 1, 1)
end_date = datetime.date(2022, 1, 10)
total_sum = calculate_4day_period_sum(start_date, end_date)
print("所有日期的4天时段总和为:", total_sum, "秒")