Unix时间戳转换

import time
 
def timestamp_datetime(value):

    format = \'%Y-%m-%d %H:%M:%S\'

    # value为传入的值为时间戳(整形)，如：1332888820

    value = time.localtime(value)

    ## 经过localtime转换后变成

    ## time.struct_time(tm_year=2012, tm_mon=3, tm_mday=28, tm_hour=6, tm_min=53, tm_sec=40, tm_wday=2, tm_yday=88, tm_isdst=0)

    # 最后再经过strftime函数转换为正常日期格式。

    dt = time.strftime(format, value)

    return dt
 
def datetime_timestamp(dt):

     #dt为字符串

     #中间过程，一般都需要将字符串转化为时间数组

     time.strptime(dt, \'%Y-%m-%d %H:%M:%S\')

     ## time.struct_time(tm_year=2012, tm_mon=3, tm_mday=28, tm_hour=6, tm_min=53, tm_sec=40, tm_wday=2, tm_yday=88, tm_isdst=-1)

     #将"2012-03-28 06:53:40"转化为时间戳

     s = time.mktime(time.strptime(dt, \'%Y-%m-%d %H:%M:%S\'))

     return int(s)
 
if __name__ == \'__main__\':

    d = datetime_timestamp(\'2012-03-28 06:53:40\')

    print d

    s = timestamp_datetime(1332888820)

    print s