如何根据给定的月份获取月份的起始日期和结束日期？

import calendar
from datetime import datetime, timedelta

def get_month_range(year, month):
    start_date = datetime(year, month, 1)
    _, last_day = calendar.monthrange(year, month)
    end_date = start_date + timedelta(days=last_day-1)
    return start_date, end_date

# 示例调用
start_date, end_date = get_month_range(2022, 9)
print("起始日期:", start_date.strftime("%Y-%m-%d"))
print("结束日期:", end_date.strftime("%Y-%m-%d"))