python监测当前联网状态并连接

def test1():    import os    return1=os.system('ping 8.8.8.8')    if return1:        print 'ping fail'        os.system('msdt.exe /id NetworkDiagnosticsNetworkAdapter')#调用系统网络诊断    else:        print 'ping'def test2():    import os    import subprocess    fnull = open(os.devnull, 'w')    return1 = subprocess.call('ping 8.8.8.8', shell = True, stdout = fnull, stderr = fnull)    if return1:        return1 = subprocess.call('msdt.exe /id NetworkDiagnosticsNetworkAdapter', shell=True, stdout=fnull, stderr=fnull)        print 'ping fail'    else:        print 'ping ok'    fnull.close()if __name__=='__main__':    test2()

监测当前是否联网,没有时调用系统的联网监测;也算是原创吧,百度了下,功能都是分开的,综合到了一起.