python中使用subprocess来使用shell

关于threading的用法

from __future__ import print_functionimport subprocessimport threadingdef is_reachable(ip): if subprocess.call(["ping", "-c", "2", ip])==0:#只发送两个ECHO_REQUEST包 print("{0} is alive.".format(ip)) else: print("{0} is unalive".format(ip))if __name__ == "__main__": ips = ["", "192.168.0.1"] for arg in args: q.put(arg) threads = [] for i in range(10): thr = threading.Thread(target=is_reachable, args=(q,)) thr.start() threads.append(thr) for thr in threads: thr.join()if __name__ == "__main__": main()

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