The instructions PUSH and QUEUE correspond to LIFO and FIFO operations on the stack.
指令push和QUEUE对应的是对栈的LIFO和FIFO操作。
If you pop the first item of a list, you have a queue; whereas, if you pop the last item of a list, you have a stack, as shown in Listing 8.
如果弹出list的第一项，则是一个队列；反之，如果弹出list的最后一项，则是一个堆栈，如清单8所示。
If the solution requires additional queue managers, it might result in additional instances of other software components in the stack up to and including additional servers.
如果解决方案需要附加的队列管理器，可能会导致堆积其他软件组件的更多实例，并包括更多的服务器。
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