python 时间戳，datetime ，时间字符，时间元组相互转换

在这里插入代码片
```import datetime, time
    # 时间戳转时间字符串
    timeStamp = time.time()
    dateArray = datetime.datetime.fromtimestamp(timeStamp)  # 时间戳转datetime
    print(dateArray)
    print(type(dateArray))
    otherStyleTime = dateArray.strftime("%Y-%m-%d %H:%M:%S")  # datetime转时间字符串
    print(otherStyleTime)
    # 时间字符串转datetime
    date_time = datetime.datetime.strptime(otherStyleTime, "%Y-%m-%d %H:%M:%S")   # 时间字符串转datetime
    print(date_time)
    print(type(date_time))
    print(time.mktime(date_time.timetuple()))  # datetime转时间戳

    timeArray = time.localtime(timeStamp)  # 时间戳转时间元组
    otherStyleTime = time.strftime("%Y-%m-%d %H:%M:%S", timeArray)  # 时间元组转时间字符串
    date_time1 = time.strptime(otherStyleTime, "%Y-%m-%d %H:%M:%S")  # 时间字符串转时间元组
    # print(otherStyleTime)
    print(timeArray)
    print(date_time1)
    print(time.mktime(date_time1))  # 时间元组转时间戳