按月排序"mm/dd/yyyy-mm/dd/yyyy“格式

from datetime import datetime

def sort_dates(date_strings):
    # 定义日期格式
    date_format = "%m/%d/%Y-%m/%d/%Y"
    
    # 解析日期字符串并存储为元组 (开始日期, 结束日期)
    dates = []
    for date_str in date_strings:
        start_date_str, end_date_str = date_str.split('-')
        start_date = datetime.strptime(start_date_str, "%m/%d/%Y")
        end_date = datetime.strptime(end_date_str, "%m/%d/%Y")
        dates.append((start_date, end_date))
    
    # 按开始日期的月份排序
    sorted_dates = sorted(dates, key=lambda x: x[0].month)
    
    # 将排序后的日期转换回字符串格式
    sorted_date_strings = ['-'.join([start_date.strftime("%m/%d/%Y"), end_date.strftime("%m/%d/%Y")]) for start_date, end_date in sorted_dates]
    
    return sorted_date_strings

# 示例日期字符串列表
date_strings = [
    "02/15/2023-03/20/2023",
    "01/05/2023-01/15/2023",
    "03/01/2023-03/31/2023"
]

# 排序日期字符串
sorted_date_strings = sort_dates(date_strings)
print(sorted_date_strings)

['01/05/2023-01/15/2023', '02/15/2023-03/20/2023', '03/01/2023-03/31/2023']