Python程序birthday_021.py功能优化求助：如何添加对应生日星期的诗歌内容输出

我来帮你搞定这个需求！要实现把对应星期的诗歌语句整合到输出里，我们可以通过建立星期与诗歌句子的映射字典，再扩展代码支持多行输入处理来完成。下面是完整的可运行代码：

#!/usr/bin/env python3
import datetime
import calendar

def get_birthday_poem(weekday):
    # 用字典存储星期和对应诗歌句子的映射，查找效率高且代码简洁
    weekday_poems = {
        "Monday": "Monday’s child is fair of face",
        "Tuesday": "Tuesday’s child is full of grace",
        "Wednesday": "Wednesday’s child is full of woe",
        "Thursday": "Thursday’s child has far to go",
        "Friday": "Friday’s child is loving and giving",
        "Saturday": "Saturday’s child works hard for a living",
        "Sunday": "Sunday’s child is fair and wise and good in every way"
    }
    return weekday_poems.get(weekday, "")

def find_day(date_str):
    # 解析日期字符串，返回星期几的全称（遵循Python命名规范，改用小写加下划线）
    born = datetime.datetime.strptime(date_str, '%d %m %Y').weekday()
    return calendar.day_name[born]

def main():
    print("请输入多行出生日期（每行格式：日 月 年），输入完成后按Ctrl+D（Linux/macOS）或Ctrl+Z（Windows）结束：")
    import sys
    # 遍历标准输入的每一行，处理多行输入
    for line in sys.stdin:
        cleaned_line = line.strip()
        if not cleaned_line:
            continue  # 跳过空行，避免无效处理
        try:
            weekday = find_day(cleaned_line)
            poem_line = get_birthday_poem(weekday)
            # 使用f-string拼接输出，格式更清晰易读
            print(f"You were born on a {weekday} and {poem_line}")
        except ValueError:
            # 捕获日期格式错误，给用户友好提示
            print(f"❌ 错误：输入的日期格式不正确，请检查 '{cleaned_line}'")

if __name__ == "__main__":
    main()

关键修改点说明 #

• 星期-诗歌映射字典：用weekday_poems字典把每个星期几和对应的诗歌句子绑定，相比一堆if-elif判断，这种方式代码更简洁，查找速度也更快。
• 支持多行输入处理：通过遍历sys.stdin读取每一行输入，自动处理用户输入的多行出生日期，同时跳过空行避免无效操作。
• 错误处理：加入try-except捕获日期解析时的ValueError（比如输入的不是有效日期、格式不对），给用户明确的错误提示，让程序更健壮。
• 输出格式优化：使用Python的f-string来拼接输出内容，比原来的字符串加号拼接更直观，也更容易维护。

测试示例 #

如果输入：

26 11 2001
01 01 2024

程序会输出：

You were born on a Monday and Monday’s child is fair of face
You were born on a Monday and Monday’s child is fair of face

内容的提问来源于stack exchange，提问作者Lostsoulaside