链栈的演示程序 实现栈的入栈，清空，出栈，退出操作。 输入指定元素。-chain stack of demo program Stack stack, flush out stack, to withdraw from the operation. Designated input elements.

有关铁路计算机连锁的界面，用VC实现战场进路选择、控制-Computer interface of the railway chain, VC achieve battlefield into the road selection, control

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