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超轻量级php框架startmvc

python timestamp和datetime之间转换详解

更新时间:2020-05-13 14:24:01 作者:startmvc
做开发中难免时间类型之间的转换,最近就发现前端js和后端django经常要用到这个转换,其

做开发中难免时间类型之间的转换, 最近就发现前端js和后端django经常要用到这个转换, 其中jsDate.now()精确到毫秒,而Python中Datetime.datetime.now()是精确到微秒的。

1. 字符串日期时间转换成时间戳


# '2015-08-28 16:43:37.283' --> 1440751417.283 
# 或者 '2015-08-28 16:43:37' --> 1440751417.0 
def string2timestamp(strValue): 
 
 try: 
 d = datetime.datetime.strptime(strValue, "%Y-%m-%d %H:%M:%S.%f") 
 t = d.timetuple() 
 timeStamp = int(time.mktime(t)) 
 timeStamp = float(str(timeStamp) + str("%06d" % d.microsecond))/1000000 
 print timeStamp 
 return timeStamp 
 except ValueError as e: 
 print e 
 d = datetime.datetime.strptime(str2, "%Y-%m-%d %H:%M:%S") 
 t = d.timetuple() 
 timeStamp = int(time.mktime(t)) 
 timeStamp = float(str(timeStamp) + str("%06d" % d.microsecond))/1000000 
 print timeStamp 
 return timeStamp 

2. 时间戳转换成字符串日期时间


# 1440751417.283 --> '2015-08-28 16:43:37.283' 
def timestamp2string(timeStamp): 
 try: 
 d = datetime.datetime.fromtimestamp(timeStamp) 
 str1 = d.strftime("%Y-%m-%d %H:%M:%S.%f") 
 # 2015-08-28 16:43:37.283000' 
 return str1 
 except Exception as e: 
 print e 
 return '' 

以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持脚本之家。

python timestamp datetime