python常用实例

from datetime import datetime as dt
insert = dt.strptime('2018-03-22 10:00:00', "%Y-%m-%d %H:%M:%S")
current = dt.strptime(str(dt.now().strftime('%Y-%m-%d')), '%Y-%m-%d')
print (current-insert).days             
print (current-insert).seconds          # 秒
print (current-insert).microseconds     # 毫秒