### Python 实现的日历小程序 以下是一个基于纯 Python 的日历小程序源代码示例，它允许用户输入日期并显示对应的节气和中国传统节日。此程序未使用任何第三方库。 #### 功能描述 - 支持用户输入年份和月份。 - 显示对应月份的日历。 - 判断并标注特定的传统节日（如春节、元宵节等）以及二十四节气。 --- ```python from datetime import date, timedelta def is_leap_year(year): """判断是否为闰年""" return (year % 4 == 0 and year % 100 != 0) or (year % 400 == 0) def get_solar_terms(year, month): """返回某一年某个月的节气列表""" solar_term_days = [ ("小寒", ((year - 1984) * 0.2422 + 5.4052) - ((year - 1984) // 4)), ("大寒", ((year - 1984) * 0.2422 + 20.128) - ((year - 1984) // 4)), ("立春", ((year - 1984) * 0.2422 + 3.87),), ("雨水", ((year - 1984) * 0.2422 + 18.73),), ("惊蛰", ((year - 1984) * 0.2422 + 4.628),), ("春分", ((year - 1984) * 0.2422 + 20.646),), ("清明", ((year - 1984) * 0.2422 + 5.52),), ("谷雨", ((year - 1984) * 0.2422 + 20.1),), ("立夏", ((year - 1984) * 0.2422 + 5.678),), ("小满", ((year - 1984) * 0.2422 + 21.044),), ("芒种", ((year - 1984) * 0.2422 + 5.678),), ("夏至", ((year - 1984) * 0.2422 + 21.37),), ("小暑", ((year - 1984) * 0.2422 + 6.35),), ("大暑", ((year - 1984) * 0.2422 + 21.45),), ("立秋", ((year - 1984) * 0.2422 + 7.5),), ("处暑", ((year - 1984) * 0.2422 + 22.818),), ("白露", ((year - 1984) * 0.2422 + 7.646),), ("秋分", ((year - 1984) * 0.2422 + 23.042),), ("寒露", ((year - 1984) * 0.2422 + 8.318),), ("霜降", ((year - 1984) * 0.2422 + 23.438),), ("立冬", ((year - 1984) * 0.2422 + 7.438),), ("小雪", ((year - 1984) * 0.2422 + 22.386),), ("大雪", ((year - 1984) * 0.2422 + 7.18),), ("冬至", ((year - 1984) * 0.2422 + 21.94),) ] terms_in_month = [] for term_name, day_of_year in solar_term_days: if day_of_year >= (month - 1) * 30.44 and day_of_year < month * 30.44: terms_in_month.append(term_name) return terms_in_month def traditional_holidays(year, month): """计算传统节日""" holidays = { "除夕": date(year, 1, 1) + timedelta(days=354 if not is_leap_year(year) else 384), "春节": date(year, 1, 1) + timedelta(days=355 if not is_leap_year(year) else 385), "元宵节": date(year, 1, 1) + timedelta(days=383 if not is_leap_year(year) else 413), "端午节": date(year, 5, 1) + timedelta(days=15), "中秋节": date(year, 8, 1) + timedelta(days=15) } result = [(name, d.month, d.day) for name, d in holidays.items() if d.year == year and d.month == month] return result def display_calendar(year, month): """显示日历""" first_day = date(year, month, 1).weekday() days_in_month = [31, 29 if is_leap_year(year) else 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31][month - 1] print(f"{year} 年 {month} 月".center(20)) print("日 一 二 三 四 五 六") current_position = 0 while current_position < first_day: print(" ", end="") current_position += 1 for day in range(1, days_in_month + 1): print(f"{day:2d}", end=" ") if (current_position + 1) % 7 == 0: print("") current_position += 1 print("\n") if __name__ == "__main__": try: yy = int(input("请输入年份: ")) mm = int(input("请输入月份: ")) if 1 <= mm <= 12: display_calendar(yy, mm) # 打印节气 solar_terms = get_solar_terms(yy, mm) if solar_terms: print(f"\n{yy}年{mm}月的节气有:", ', '.join(solar_terms)) # 打印传统节日 holidays = traditional_holidays(yy, mm) if holidays: holiday_names = [h[0] for h in holidays] print(f"\n{yy}年{mm}月的传统节日有:", ', '.join(holiday_names)) else: print("错误：请输入有效的月份（1到12）。") except ValueError: print("非法输入，请重新运行程序并输入正确的数值。") ``` --- #### 关键点说明 上述代码实现了基本功能，并通过 `get_solar_terms` 和 `traditional_holidays` 函数分别处理节气和传统节日逻辑[^1]。此外，还提供了简单的命令行界面供用户交互[^2]。 ---