如何获取两年范围内一个月的日期数

import datetime

def get_month_dates(start_year, end_year, month):
    dates = []
    for year in range(start_year, end_year + 1):
        date = datetime.date(year, month, 1)
        while date.month == month:
            dates.append(date.strftime("%Y-%m-%d"))
            date += datetime.timedelta(days=1)
    return dates

start_year = 2020
end_year = 2021
month = 5

dates = get_month_dates(start_year, end_year, month)
print(dates)