python-时间戳/格式化时间互转

• 导入相关库
• 一、时间戳转格式化时间
• 二、格式化时间转时间戳

import time
from datetime import datetime

# 使用time转换，精确到秒
def stamp_to_strtime(stamp):
    timestamp = float(stamp/1000)
    timearray = time.localtime(timestamp)
    strtime = time.strftime("%Y-%m-%d %H:%M:%S",timearray)
    return strtime


# 使用datetime转换，精确到毫秒
def stamp_to_strtime(stamp):
    timestamp = datetime.fromtimestamp(stamp/1000)
    strtime = timestamp.strftime("%Y-%m-%d %H:%M:%S.%f")
    return strtime

# 转换为时间戳，精确到毫秒
def strtime_to_stamp(strtime):
    timearray = datetime.strptime(dt,"%Y-%m-%d %H:%M:%S.%f")
    timestamp = int(time.mktime(timearray.timetuple())*1000.0 + timearray.microsecond/1000.0)
    return timestamp