30、Python 并发编程：线程、进程与调度的全面指南

Python 并发编程：线程、进程与调度的全面指南

1. 线程的使用

在 Python 中，线程是实现并发的一种方式。下面是一个使用线程进行 ARP 扫描的示例代码：

worker.start() #spawn pool of arping threads for i in range(num_arp_threads): worker = Thread(target=arping, args=(i, out_queue)) worker.setDaemon(True) worker.start() print "Main Thread Waiting" #ensures that program does not exit until both queues have been emptied in_queue.join() out_queue.join() print "Done"

运行上述代码，输出示例如下：

python2.5 ping_thread_basic_2.py Main Thread Waiting Thread 0: Pinging 10.0.1.1 Thread 1: Pinging 10.0.1.3 Thread 2: Pinging 10.0.1.11 Thread 0: Pinging 10.0.1.51 IP Address: 10.0.1.1 | Mac Address: [00:00:00:00:00:01] IP Address: 10.0.1.51 |