从给定日期获取最近几周的日期

from datetime import datetime, timedelta

def get_recent_weeks(start_date, num_weeks):
    # 将给定日期字符串转换为datetime对象
    start_date = datetime.strptime(start_date, "%Y-%m-%d")
    
    dates = []
    for i in range(num_weeks):
        # 计算当前周的开始日期和结束日期
        end_date = start_date + timedelta(days=6)
        
        # 将日期格式化为字符串并添加到列表中
        dates.append(start_date.strftime("%Y-%m-%d") + " - " + end_date.strftime("%Y-%m-%d"))
        
        # 更新start_date为下一周的开始日期
        start_date = end_date + timedelta(days=1)
    
    return dates

# 示例用法
start_date = "2022-01-01"
num_weeks = 4
result = get_recent_weeks(start_date, num_weeks)
print(result)

['2022-01-01 - 2022-01-07', '2022-01-08 - 2022-01-14', '2022-01-15 - 2022-01-21', '2022-01-22 - 2022-01-28']