import time end_time = time.strftime('%Y-%m-%d',time.localtime(time.time())) start_year = int(time.strftime('%Y',time.localtime(time.time()))) - 2 month_day = time.strftime('%m-%d',time.localtime(time.time())) start_time = '{}-{}'.format(start_year,month_day)
输出结果如下: