选择最接近另一个日期的日期

from datetime import datetime

def find_closest_date(target_date, dates):
    closest_date = None
    min_difference = float('inf')

    for date in dates:
        difference = abs((target_date - date).days)
        if difference < min_difference:
            min_difference = difference
            closest_date = date

    return closest_date

# 示例数据
target_date = datetime(2022, 1, 1)
dates = [
    datetime(2021, 12, 31),
    datetime(2022, 1, 2),
    datetime(2022, 1, 3),
    datetime(2022, 1, 4)
]

closest_date = find_closest_date(target_date, dates)
print("最接近的日期是:", closest_date)