Python time tuple is converted to timestamp, string

Python time tuple is converted to timestamp, string

1. Time tuple --> timestamp

import time
timeArray = time.localtime(time.time())
timeStamp = time.mktime(timeArray)  # 时间戳：1600858387.0

2. Time tuple --> string

timeDate = time.strftime("%Y-%m-%d %H:%M:%S", timeArray)  # datetime.datetime：'2020-09-23 18:53:07'
timeDate = time.strftime("%Y-%m-%d", timeArray)  # datetime.date：'2020-09-23'