用python编程 已知2019年12月22日是星期日，现在输入其后的任意一个日期，计算该日是星期几。要求在主函数输入日期，调用自定义函数whichday

```python import datetime def whichday(year, month, day): target_date = datetime.date(year, month, day) start_date = datetime.date(2019, 12, 22) days_passed = (target_date - start_date).days days_of_week = ["星期日", "星期一", "星期二", "星期三", "星期四", "星期五", "星期六"] return days_of_week[days_passed % 7] def main(): year = int(input("请输入年份: ")) month = int(input("请输入月份: ")) day = int(input("请输入日期: ")) print(whichday(year, month, day)) if __name__ == "__main__": main() ``` [2024-10-22 16:50:47 | AI写代码神器 | 177点数解答]