如何找到与给定日期最接近的日期？

from datetime import datetime, timedelta

def find_closest_date(dates, target_date):
    closest_date = None
    min_difference = timedelta.max

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

    return closest_date

# 示例用法
dates = [
    datetime(2022, 1, 1),
    datetime(2022, 2, 15),
    datetime(2022, 3, 10),
    datetime(2022, 4, 20)
]

target_date = datetime(2022, 3, 1)
closest_date = find_closest_date(dates, target_date)
print("Closest Date:", closest_date)