Python多线程 Queue 模块常见用法

 import threading import time def a(): print("a start\n") for i in range(10): time.sleep(0.1) print("a finish\n") def b(): print("b start\n") print("b finish\n") def main(): # t=threading.Thread(target=a,name="T") t = threading.Thread(target=a) t2=threading.Thread(target=b) t.start() t2.start() # t2.join() # t.join() print("all done\n") if __name__ == '__main__': main()

 import queue import threading import time exitFlag = 0 class myThread (threading.Thread): def __init__(self, threadID, name, q): threading.Thread.__init__(self) self.threadID = threadID self.name = name self.q = q def run(self): print ("开启线程：" + self.name) process_data(self.name, self.q) print ("退出线程：" + self.name) def process_data(threadName, q): while not exitFlag: queueLock.acquire() if not workQueue.empty(): data = q.get() queueLock.release() print ("%s processing %s" % (threadName, data)) else: queueLock.release() time.sleep(1) threadList = ["Thread-1", "Thread-2", "Thread-3"] nameList = ["One", "Two", "Three", "Four", "Five"] queueLock = threading.Lock() workQueue = queue.Queue(10) threads = [] threadID = 1 # 创建新线程 for tName in threadList: thread = myThread(threadID, tName, workQueue) thread.start() threads.append(thread) threadID += 1 # 填充队列 queueLock.acquire() for word in nameList: workQueue.put(word) queueLock.release() # 等待队列清空 while not workQueue.empty(): pass # 通知线程是时候退出 exitFlag = 1 # 等待所有线程完成 for t in threads: t.join() print ("退出主线程")