本文實例講述了Python實現隊列的方法。分享給大家供大家參考。具體實現方法如下:
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 #!/usr/bin/env python queue = [] def enQ(): queue.append(raw_input('Enter new string: ').strip()) #調用list的列表的pop()函數.pop(0)為列表的第一個元素 def deQ(): if len(queue) == 0: print 'Cannot pop from an empty queue!' else: print 'Removed [', queue.pop(0) ,']' def viewQ(): print queue CMDs = {'e': enQ, 'd': deQ, 'v': viewQ} def showmenu(): pr = """ (E)nqueue (D)equeue (V)iew (Q)uit Enter choice: """ while True: while True: try: choice = raw_input(pr).strip()[0].lower() except (EOFError, KeyboardInterrupt, IndexError): choice = 'q' print 'nYou picked: [%s]' % choice if choice not in 'devq': print 'Invalid option, try again' else: break if choice == 'q': break CMDs[choice]() if __name__ == '__main__': showmenu()希望本文所述對大家的Python程序設計有所幫助。