时间
import datetime
now=datetime.datetime.now()
print(now.strftime("%Y-%m-%d %H:%M:%S"))
date = now.strftime("%Y%m%d")
print(date)
import datetime
now=datetime.datetime.now()
print(now.strftime("%Y-%m-%d %H:%M:%S"))
date = now.strftime("%Y%m%d")
print(date)