自动切换Wifi网络保证在线

最近寝室网不太好，经常莫名其妙的连不上网。害的我上次一个上午没有收集到数据。其实也简单，每次手动在自己寝室和隔壁寝室之间切换就可以了。。。那我不在电脑旁边的时候谁来切？还是编个自动切换wifi的程序吧:-) 以后迅雷下载的时候也有用呢:-)

为了便于在其他程序中调用，这个程序被做成了模块的形式。

# 再一次感到了Python用来做开发时的便利性，可以快速把想法付诸实施。这次这个程序用了一个多小时就完成了~

# 借此机会练习了一下正则表达式，真是神器~ Python可以和CMD做联合编程，就是说以前学的CMD的技术也可以用上了，好爽~

调用方式：（放在同一个文件夹下）

importkol

kol.func()

为了隐私，wifi的SSID已经隐去，请按需要修改。

配置文件的设置方式：

http://tech.diannaodian.com/security/wl/wx/2013/0227/228620.html

# Keep OnLine(wifi)

# Designed by Xc.Li

# Dec.2015

import urllib

import os

import re

import time

import winsound

def get_wifi():

#get the current name of wifi

#netsh wlan show interfaces

flag = 0 #whether connected to a wifi?

report = os.popen('netsh wlan show interfaces')

for line in report:

if re.search('^ *SSID',line):

current_wifi_name = re.findall('^.*: (.*)',line)[0]

flag = 1

if flag == 0:

current_wifi_name = 0

return current_wifi_name

def connect_wifi(wifi_name):

# netsh wlan add profile filename="E:\WLAN-call me daddy.xml"

# netsh wlan connect name="call me daddy" ssid="call me daddy" interface="WLAN"

if wifi_name == 0:

new_connection = '23-608'

if wifi_name == '23-608':

new_connection = 'call me daddy'

if wifi_name == 'call me daddy':

new_connection = '23-608'

os.system('netsh wlan add profile filename="D:\OneDrive\Python\material\WLAN-'+new_connection+'.xml"')

os.system('netsh wlan connect name="'+new_connection+'" ssid="'+new_connection+'" interface="WLAN"')

def func():

while (True):

try:

print 'Trying to connect Baidu...'

urllib.urlopen('http://www.baidu.com')

print 'Connection is OK!'

break

except:

print 'Fail to connect Baidu!'

print 'currently connected to:',get_wifi()

connect_wifi(get_wifi())

winsound.Beep(880,1000)

print 'wait...'

time.sleep(5) #it takes some time to establish a connection