格式化时间正确操作方式

描述: 给你一个时间t（t是一个字典，共有六个字符串key(year,month,day,hour,minute,second),值为每个值为数字组成的字符串， 如t={'year':'2013','month':'9','day':'30','hour':'16','minute':'45','second':'2'}

请将其按照以下格式输出， 格式:XXXX-XX-XX XX:XX:XX。如上例应该输出： 2013-09-30 16:45:02。

from __future__ import print_function import datetime,time,calendar # t={'year':'2013','month':'9','day':'30','hour':'16','minute':'45','second':'2'} def convert_to_date_time(t):     nowdate = datetime.datetime(int(t['year']), int(t['month']), int(t['day']), int(t['hour']), int(t['minute']), int(t['second']))     # date_time = time.strptime(nowdate, "%Y-%m-%d %H:%M:%S")     return nowdate print(convert_to_date_time(t), end='')