输入日期格式字符串 获取时间戳 构造时间，时间加减等

import time
import datetimedef format_time() -> None:"""
日期格式化"""inputStr1: str = input("输入一个时间格式的字符串")timeArray = time.strptime(inputStr1, '%Y-%m-%d %H:%M:%S')# 得到的是 float毫秒数intnumber = int(time.mktime(timeArray))timeArray = time.strptime(inputStr1, '%Y-%m-%d %H:%M:%S')str1 = time.strftime('%Y-%m-%d %H-%M-%S',timeArray)print(str1)def three_days_age_time1() -> None:"""
获取三天前时间"""threeDaysAgoDateTime = datetime.datetime.now() - datetime.timedelta(days=3)timestamp1 = int(time.mktime(threeDaysAgoDateTime.timetuple()))# 格式直接转otherFormatStr = threeDaysAgoDateTime.strftime('%Y-%m-%d %H:%M:%S')print(otherFormatStr)# 时间戳构造dataArrary = datetime.datetime.utcfromtimestamp(timestamp1)print(dataArrary)def timestamp_to_datetime() -> None:"""
时间戳转日期字符串等"""nowTime = int(time.time())structTime = time.localtime(nowTime)otherTime = time.strftime('%Y-%m-%d %H:%M:%S', structTime)print(otherTime)time.sleep(1)nowTime2 = datetime.datetime.now()str1 = nowTime2.strftime('%Y-%m-%d %H:%M:%S')print(str1)time.sleep(1)nowTime = time.localtime(1557502800)otherTime = time.strftime('%Y-%m-%d %H:%M:%S', nowTime)print(otherTime)dateArray = datetime.datetime.utcfromtimestamp(1557502900)datetimeFormatStr = dateArray.strftime('%Y-%m-%d %H:%M:%S')print(datetimeFormatStr)