前言：

这篇文章给大家介绍了怎样用python创建一个简单的报警，它可以运行在命令行终端，它需要分钟做为命令行参数，在这个分钟后会打印”wake-up”消息，并响铃报警，你可以用0分钟来测试，它会立即执行，用扬声器控制面板调整声音。

以下是脚本：

# alarm_clock.py
 
# Description: A simple Python program to make the computer act 
# like an alarm clock. Start it running from the command line 
# with a command line argument specifying the duration in minutes 
# after which to sound the alarm. It will sleep for that long, 
# and then beep a few times. Use a duration of 0 to test the 
# alarm immediiately, e.g. for checking that the volume is okay.
 
# Author: Vasudev Ram - http://www.dancingbison.com
 
import sys
import string
from time import sleep
 
sa = sys.argv
lsa = len(sys.argv)
if lsa != 2:
  print \"Usage: [ python ] alarm_clock.py duration_in_minutes\"
  print \"Example: [ python ] alarm_clock.py 10\"
  print \"Use a value of 0 minutes for testing the alarm immediately.\"
  print \"Beeps a few times after the duration is over.\"
  print \"Press Ctrl-C to terminate the alarm clock early.\"
  sys.exit(1)
 
try:
  minutes = int(sa[1])
except ValueError:
  print \"Invalid numeric value (%s) for minutes\" % sa[1]
  print \"Should be an integer >= 0\"
  sys.exit(1)
 
if minutes < 0:
  print \"Invalid value for minutes, should be >= 0\"
  sys.exit(1)
 
seconds = minutes * 60
 
if minutes == 1:
  unit_word = \" minute\"
else:
  unit_word = \" minutes\"
 
try:
  if minutes > 0:
    print \"Sleeping for \" + str(minutes) + unit_word
    sleep(seconds)
  print \"Wake up\"
  for i in range(5):
    print chr(7),
    sleep(1)
except KeyboardInterrupt:
  print \"Interrupted by user\"
  sys.exit(1)
 
# EOF

总结：

这个脚本我工作中已经在使用了，非常实用，当然为避免影响其他同事工作，你最好带耳机，如果要求不高，其实从终端打印出的”wake-up”消息已经足够提醒的了。以上就是这篇文章的全部内容，希望对大家的学习和工作能带来一定的帮助，如果有疑问大家可以留言交流。谢谢大家对脚本之家的支持。