1、示例：

def main(argv):    ......................    for sig in (signal.SIGTERM, signal.SIGINT):        signal.signal(sig, shutdown_signal)def shutdown_signal(signum, frame):    """    关闭掉整个进程    :param signum:    :param frame:    :return:    """    LOG.warning("shutting down, got signal %d", signum)

　　

2、信号

SIGINT

SIGTERM

SIGKILL

SIGALRM