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                ``` import multiprocessing import time """主進程往隊列中放入屏幕上輸入的數據  子進程從隊列中取出數據并且打印出來""" def proc_func(queue): while True: if queue.empty(): print("隊列是空的 我稍后來取一次") time.sleep(2) else: data = queue.get() print("從隊列中取出數據%s" % data) time.sleep(2) if __name__ == '__main__': # 1 創建一個隊列 參數表示隊列的最大長度 queue = multiprocessing.Queue(3) # 2 創建一個子進程 pro = multiprocessing.Process(target=proc_func, args=(queue,)) pro.start() # 3 錄入數據 放入隊列 while True: if queue.full(): print("隊列已滿") time.sleep(1) else: data = input("請輸入:") queue.put(data) print("當前隊列數據條數是%s" % queue.qsize()) """如何創建隊列 放數據 取數據""" ```
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