1 .datetime轉1970年秒數

import time,datetime
timeDateStr="2014-07-29 00:00:00"
time1=datetime.datetime.strptime(timeDateStr,"%Y-%m-%d %H:%M:%S")
secondsFrom1970=time.mktime(time1.timetuple())

2.1970年秒數轉datetime

import time,datetime
timeArray = time.localtime(1462482700)#1970秒數
print(timeArray)
otherStyleTime = time.strftime("%Y-%m-%d %H:%M:%S"
 
, timeArray)
datetime1=datetime.datetime.strptime(otherStyleTime, "%Y-%m-%d %H:%M:%S")