python中datatime模块的使用方法
导入包 import datetime 获取当天日期 now_time=datetime.datetime.now() print((now_time+datetime.timedelta(days=+1)).strftime("%Y-%m-%d %H:%M:%S")) #获取后一天+1 前一天-1 print ((now_time+datetime.timedelta(hours=-1)).strftime("%Y-%m-%d %H:%M:%S")) #获取前一小时 print(now_time.strftime("%Y-%m-%d %H:%M:%S"),(now_time+datetime.timedelta(minutes=+1)).strftime("%Y-%m-%d %H:%M:%S")) #前一分钟后一分钟 print(now_time.strftime("%Y-%m-%d %H:%M:%S"),(now_time+datetime.timedelta(minutes=+1/60)).strftime("%Y-%m-%d %H:%M:%S"))#前一秒后一秒