import time,datetime

# print(time.time())                   #时间戳
# print(time.strftime("%Y-%m-%d %X"))  #格式化时间
# print(time.localtime())              #本地的struct_time
# print(time.gmtime())                 #本地的utc时间
# print(time.ctime())                  #英文日期

#时间加减
print(datetime.datetime.now())                              #显示当前时间的毫秒
print(datetime.date.fromtimestamp(time.time()))             #将时间戳直接转成日期格式
print(datetime.datetime.now() + datetime.timedelta(3))      #显示现在时间加三天
print(datetime.datetime.now() + datetime.timedelta(-3))     #显示现在时间减三天
print(datetime.date.fromtimestamp(time.time()) + datetime.timedelta(3))    #当前时间取整加三
print(datetime.date.fromtimestamp(time.time()) + datetime.timedelta(-3))   #当前时间取整减三
print(datetime.datetime.now() + datetime.timedelta(hours=3))#显示现在时间加三小时
print(datetime.datetime.now() - datetime.timedelta(hours=3))#显示现在时间减三小时
print(datetime.datetime.now() + datetime.timedelta(minutes=30))#显示现在时间加三十分
#时间替换
now_time = datetime.datetime.now()
print(now_time.replace(minute=3,hour=2))