python 歸納 (十四)_隊列Queue實現生產者消費者

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# -*- coding: UTF-8 -*-"""多線程的生產者，消費者使用隊列Queue"""import Queueimport threadingimport timeimport randomqueue = Queue.Queue(3)  # 建立3個大小的隊列class Producer(threading.Thread):    """    生產者，往隊列中寫資料    """    def __init__(self, queue):        super(Producer, self).__init__()  # 調用父類建構函式        self.queue = queue    def run(self):        while True:            my_rand_double = random.random()            self.queue.put(my_rand_double)      # 往隊列寫資料            print "producer randonm %f \n" % (my_rand_double)            time.sleep(2)class Consumer(threading.Thread):    """    消費者，從隊列中讀取資料    """    def __init__(self, queue):        super(Consumer, self).__init__()        self.queue = queue    def run(self):        while True:            my_data = self.queue.get()          # 從隊列讀資料            print "consumer:",my_data,"\n"            time.sleep(1)if __name__ == ‘__main__‘:    print "begin....\n"    # 啟動線程    Producer(queue).start()    Consumer(queue).start()    Consumer(queue).start()    print "main end....\n""""Out:begin....producer randonm 0.321120consumer: 0.32111958348main end....producer randonm 0.340942consumer: 0.340942161065producer randonm 0.672640consumer: 0.672639677729producer randonm 0.940307consumer: 0.940307007999producer randonm 0.497011consumer: 0.497011018834"""

 

python 歸納 (十四)_隊列Queue實現生產者消費者