# 方法一 获取凌晨时间戳
import time
import datetime
# 思路特别简单 
dt = time.strftime("%Y-%m-%d")
print(dt) # 先得到前缀 2020-01-25 这种，然后在拼接成2020-01-25 00:00:00
time_array = time.strptime(f"{dt} 00:00:00", "%Y-%m-%d %H:%M:%S")
# 然后转化为时间戳，思路特别简单
timestamp = time.mktime(time_array)
print(int(timestamp) * 1000)
# 方法二 感觉不错
day_time = time.mktime(datetime.date.today().timetuple())
print(int(day_time) * 1000)
[linuxidc@linux ~/www.linuxidc.com]$python3 linuxidc.py
2020-01-25
1579881600000

import datetime
d1 = datetime.datetime.strptime('2020-01-25 18:23:23', '%Y-%m-%d %H:%M:%S')
d2 = datetime.datetime.strptime('2020-01-20 12:23:15', '%Y-%m-%d %H:%M:%S')
# 判断大小
print(d2 > d1) # False
print(d2 < d1) # True
# 计算间隔天数
delta = d1 - d2
print(delta.days) # 输出 5
[linuxidc@linux ~/www.linuxidc.com]$python3 linuxidc.py
False
True
5