入栈和出栈的顺序

Question

请问入栈和出栈的顺序是什么样的顺序，假设依次进去1,2,3,4。要求先进入的必须等到后进入的出来之后才能出来，请问是否只有4,3,2,1这一种出栈方法？

Answer 1

可以了解一下栈这种数据结构，遵循先进后出，先进在栈底，后进在栈顶，例如你说的1234，1要出来，必须先将432分别出栈才可以

Answer 2

这个问题需要明确，入栈的同时是否允许出栈，如果是数据全部入栈后才能出栈，入栈顺序为1234，那么出栈顺序只能是4321。如果入栈的同时允许出栈，那么出栈的顺序队列就有好几个。

Answer 3

1先进去，然后1出来，之后2进去，2出来。你也可以先放入12，然后取出2，在放入3，取出3等等。总之有很多入出顺序，先进后出原则。

Answer 4

我也是新手刚学。 按照我们老师的说法，压栈就是往死胡同里推车，要想让车出来，只有最后进去的一辆退出去，倒数第二辆才能出去，然后以此类推，第一辆进去的车最后才能出去。

Answer 5

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Answer 6

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Answer 7

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Answer 8

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