在列表中查找12个月前距今天最近的日期

import datetime

def find_nearest_date(dates):
    today = datetime.date.today()
    nearest_date = None
    min_difference = float('inf')

    for date in dates:
        difference = (today - date).days
        if difference <= 365 and difference < min_difference:
            min_difference = difference
            nearest_date = date

    return nearest_date

# 示例日期列表
dates = [datetime.date(2021, 1, 1), datetime.date(2021, 6, 30), datetime.date(2022, 1, 1)]

nearest_date = find_nearest_date(dates)
print(nearest_date)