Python练习题3：计算两个日期相隔的秒数

import datetime def date_delta(start,end): start = datetime.datetime.strptime(start,"%Y-%m-%d %H:%M:%S") end = datetime.datetime.strptime(end,"%Y-%m-%d %H:%M:%S") return (end-start).total_seconds() start = input() end = input() print(date_delta(start,end))