python 读取execl的时候 日期格式读出来的是一串数字，怎么才能还原成日期格式，我的日期是datetime类型

如题所述

你是用pyExcelerator还是xlrd读的excel?如果是xlrd那它自带一个xldate_as_tuple函数,可以转成datetime,比如:

from datetime import datetime
from xlrd import xldate_as_tuple

d=datetime(*xldate_as_tuple(x,0))#x就是你那串数字的变量

如果是用pyExcelerator,那好象它没有类似的函数,可以用下面这个函数:

def xldate_as_datetime(xldate, datemode=0):
if datemode not in (0, 1):
raise XLDateBadDatemode(datemode)
if xldate == 0.00:
return datetime.time(0, 0, 0)
if xldate < 0.00:
raise XLDateNegative(xldate)
xldays = int(xldate)
frac = xldate - xldays
seconds = int(round(frac * 86400.0))
assert 0 <= seconds <= 86400
if seconds == 86400:
seconds = 0
xldays += 1
#if xldays >= _XLDAYS_TOO_LARGE[datemode]:
# raise XLDateTooLarge(xldate)
if xldays == 0:
# second = seconds % 60; minutes = seconds // 60
minutes, second = divmod(seconds, 60)
# minute = minutes % 60; hour = minutes // 60
hour, minute = divmod(minutes, 60)
return datetime.time(hour, minute, second)
if xldays < 61 and datemode == 0:
raise XLDateAmbiguous(xldate)
return (
datetime.datetime.fromordinal(xldays + 693594 + 1462 * datemode)
+ datetime.timedelta(seconds=seconds)
)

用法:
d=xldate_as_datetime(x)#x就是你那串数字的变量

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