Python 日期与时间戳 互转

import time
#日期转时间戳
tss1 = '2020-12-28 00:00:00'
timeArray = time.strptime(tss1, "%Y-%m-%d %H:%M:%S") # 转为时间数组
# 转为时间戳
timeStamp = int(time.mktime(timeArray))
print("日期转时间戳为：")
print(timeStamp) #秒级
print(int(round(timeStamp * 1000)))#毫秒级
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#使用time 将时间戳转化为日期 
tst = timeStamp
timeArray = time.localtime(tst)
timeStampTodate = time.strftime("%Y-%m-%d %H:%M:%S", timeArray)
print("时间戳转日期为：")
print(timeStampTodate)