在Python警报C中减去时间

Question

我目前正在用Python为一个Raspberry Pi项目编写一个闹钟scip。我需要帮助解析当前时间和报警时间的小时和分钟，并将它们转换为秒，这样我就可以从报警时间中减去当前时间。在

Answer 1

下面是一个如何在python中使用datetime的示例。在

from datetime import datetime as dt
import time
format = '%Y-%m-%d %H:%M:%S'
currTime = dt.now()
alarmTime = dt.strptime('2017-12-25 08:00:00', format); 
print('current time:\t', currTime)
print('alarm time:\t', alarmTime)
currTimeUnix = time.mktime(currTime.timetuple())
alarmTimeUnix = time.mktime(alarmTime.timetuple())
diff = alarmTimeUnix - currTimeUnix
print('seconds diff: \t', diff)

输出将是：

^{pr2}$

睡眠示例：

^{3}$

将导致：

2017-12-24 22:44:24.275121
I've slept for 3 seconds
2017-12-24 22:44:27.276324