本文实例讲述了python实现队列的方法。分享给大家供大家参考。具体实现方法如下：
#!/usr/bin/env python queue = [] def enq(): queue.append(raw_input('enter new string: ').strip())#调用list的列表的pop()函数.pop(0)为列表的第一个元素 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()
希望本文所述对大家的python程序设计有所帮助。