ms级时间戳转换-本地执行

记录下ms时间戳的互相转换，python环境执行。

1.将ms时间戳转换为秒s时间

import time 

def timeStamp(timeNum): 
    timeStamp = float(timeNum/1000) 
    timeArray = time.localtime(timeStamp) 
    otherStyleTime = time.strftime("%Y-%m-%d %H:%M:%S", timeArray) 
    print (otherStyleTime)
    
timeStamp(1648795751618)
#2022-04-01 14:49:11

ms时间戳转化为ms时间

# 精确到毫秒
def timeStamp(timestamp): 
    import datetime
    d = datetime.datetime.fromtimestamp(timestamp/1000)
    #str1 = d.strftime("%Y-%m-%d %H:%M:%S.%f")
    str1 = d.strftime("%Y-%m-%d %H:%M:%S.%f")[:-3]
    return str1
    
print(timeStamp(1648795751618))
#2022-04-01 14:49:11.618000

2.将实时时间转换为时间戳

import time
from datetime import datetime

def timeToStr(timestr):
    datetime_obj = datetime.strptime(timestr, "%Y-%m-%d %H:%M:%S.%f