python时间戳转换

import time,datetime

# 当前时间转时间戳
maintenance_time = (datetime.datetime.now() + datetime.timedelta()).strftime("%Y-%m-%d %H:%M:%S")
struct_time = time.strptime(maintenance_time,'%Y-%m-%d %H:%M:%S')
second_timestamp = int(time.mktime(struct_time)) # 秒级别
print(second_timestamp) 
millisecond_timestamp = int(time.mktime(struct_time)) * 1000 # 毫秒级别
print(millisecond_timestamp) 

结果:
1666961321
1666961321000

# 时间戳转时间字符串
time_stamp = millisecond_timestamp / 1000 # 毫秒级别
time_str = time.strftime('%Y-%m-%d %H:%M:%S', time.localtime(time_stamp))
print(time_str)
time_stamp = second_timestamp # 秒级别
time_str = time.strftime('%Y-%m-%d %H:%M:%S', time.localtime(time_stamp))
print(time_str)

结果:
2022-10-28 20:48:41
2022-10-28 20:48:41