在哥哥的帮助下,我制作了这个小闹钟。昨晚我尝试了一下,没有nonBlockingRawInput
,但效果很好,但是有了nonBlockingRawInput
,它没有用。今天,我已经尝试过了,但是它们都不起作用!我将使用nonBlockingRawInput
和“non”文件发布该代码。如果您想要不带nonBlockingRawInput
的代码,请询问。
提前致谢。
警报rpi.py :
import time
import os
from non import nonBlockingRawInput
name = input("Enter your name.")
print("Hello, " + name)
alarm_HH = input("Enter the hour you want to wake up at")
alarm_MM = input("Enter the minute you want to wake up at")
print("You want to wake up at " + alarm_HH + ":" + alarm_MM)
while True:
now = time.localtime()
if now.tm_hour == int(alarm_HH) and now.tm_min == int(alarm_MM):
print("ALARM NOW!")
os.popen("open mpg321 /home/pi/voltage.mp3")
break
else:
print("no alarm")
timeout = 60 - now.tm_sec
if nonBlockingRawInput('', timeout) == 'stop':
break
non.py :
import signal
class AlarmException(Exception):
pass
def alarmHandler(signum, frame):
raise AlarmException
def nonBlockingRawInput(prompt='', timeout=20):
signal.signal(signal.SIGALRM, alarmHandler)
signal.alarm(timeout)
try:
text = input(prompt)
signal.alarm(0)
return text
except AlarmException:
pass
signal.signal(signal.SIGALRM, signal.SIG_IGN)
return ''
最佳答案
我已经看了您一段时间的代码了。据我了解,您希望能够运行警报,同时还可以在 shell 中键入“停止”以结束程序,为此,您可以使警报成为线程。该线程将检查是否有时间说“ALARM!”。并打开mp3。如果用户未在shell中键入stop,则该线程将进入休眠状态并稍后再次检查。
我基本上使用了您的代码,只是将其放入了警报线程类中:
import time
import os
import threading
class Alarm(threading.Thread):
def __init__(self, hours, minutes):
super(Alarm, self).__init__()
self.hours = int(hours)
self.minutes = int(minutes)
self.keep_running = True
def run(self):
try:
while self.keep_running:
now = time.localtime()
if (now.tm_hour == self.hours and now.tm_min == self.minutes):
print("ALARM NOW!")
os.popen("voltage.mp3")
return
time.sleep(60)
except:
return
def just_die(self):
self.keep_running = False
name = raw_input("Enter your name: ")
print("Hello, " + name)
alarm_HH = input("Enter the hour you want to wake up at: ")
alarm_MM = input("Enter the minute you want to wake up at: ")
print("You want to wake up at: {0:02}:{1:02}").format(alarm_HH, alarm_MM)
alarm = Alarm(alarm_HH, alarm_MM)
alarm.start()
try:
while True:
text = str(raw_input())
if text == "stop":
alarm.just_die()
break
except:
print("Yikes lets get out of here")
alarm.just_die()
值得注意的是,当线程处于休眠状态时,使用:
time.sleep(60)
然后,您在 shell 中键入stop,线程必须在它意识到已死之前唤醒,因此最坏的情况是您可能需要等待一分钟才能关闭程序!