[Python知识库](Python)判断主机是否在线，使用subprocess.call()函数、

import subprocess
import threading

def is_reacheable(ip):
    return_code = subprocess.call(['ping', ip])
    if retcode == 1:
        print('IP:%s is unreachable' % (ip))
    else:
        print('IP:%s is reachable' % (ip))
def main():
    with open("ips.txt") as f:    # ips.txt 存储IP地址
        lines = f.readlines()
        threads = []
        for line in lines:
            thr = threading.Thread(target=is_reacheable,args=(line,))
            thr.start()
            threads.append(thr)
        for thr in threads:
            thr.join()
if __name__ == '__main__':
    main()

subprocess.call(args,?*,?stdin=None,?stdout=None,?stderr=None,?shell=False,?cwd=None,?timeout=None,?**other_popen_kwargs)

运行由?args?所描述的命令。 等待命令完成，然后返回?returncode?属性。

需要捕获 stdout 或 stderr 的代码应当改用?run():

run(...).returncode

详见subprocess.call()官方文档