统计一个日期间隔(期间)在另一个给定日期间隔(期间)内的工作日

import datetime

def count_workdays(start_date, end_date, target_start_date, target_end_date):
    workdays = 0
    current_date = start_date

    while current_date <= end_date:
        if current_date >= target_start_date and current_date <= target_end_date:
            # 判断当前日期是否为工作日，这里假设星期一至星期五为工作日
            if current_date.weekday() < 5:
                workdays += 1
        current_date += datetime.timedelta(days=1)

    return workdays

# 示例用法
start_date = datetime.date(2022, 1, 1)
end_date = datetime.date(2022, 1, 31)
target_start_date = datetime.date(2022, 1, 5)
target_end_date = datetime.date(2022, 1, 15)

result = count_workdays(start_date, end_date, target_start_date, target_end_date)
print("工作日数量：", result)