Restart and shut down program instance implemented by python, python instance

Restart and shut down program instance implemented by python, python instance

This article describes how to restart and shut down a program implemented by Python, which has some reference value for Python program design. The specific method is as follows:

The instance code is as follows:

#! /Usr/bin/python # coding = utf-8import timefrom OS import systemruning = Truewhile runing: input = raw_input ('shutdown (s) OR restart (r )? (Q exit) ') input = input. lower () if input = 'q' or input = 'quit ': runing = False print 'exit 'break seconds = int (raw_input ('Enter the pause time (unit: seconds): ') time. sleep (seconds) print 'pause time: ', seconds runing = False if input = 's': print 'shutdown ing' system ('halt ') elif input = 'r': print 'restart ing 'System ('reboot') else: print' program error re-enter 'runing = Trueprint 'program end ~~~! '

This instance passes the test in linux. If windows is used, you need to determine whether to execute the command.

How can I use python as a small program that prompts a message when windows is shut down?

If you must use python for implementation, you can directly use the OS. system () or OS. popen () module to call the shutdown command of windows to shut down.
 
When python is automatically shut down, the input is always displayed as running. It is too slow. How can this problem be solved? The response of the following two programs is slow.

You have made it too complicated. The first sleep is a very slow stuff.

You should simplify the logic. Abstract time management into a class separately.

The best way to do this is to use the scheduled tasks that come with the operating system. Both windows and linux have scheduled tasks. Then, call your applet through scheduled tasks.

5-10 sentences.

In addition, you still have limited use of the time and datetime libraries, so you don't need such complicated logic. Most of your ideas are available in other libraries. Let's take a look at it. It's easy to implement.

DIY, do not repeat yourself. This is the PYTHON programming principle. You do not need to repeat things that are meaningless.