数组Vs链表:

由于内存碎片，阵列内存分配有时会失败。 在数组中缓存更好，因为所有元素都分配了连续的内存空间。 编码比数组更复杂。 与数组不同，在链表上没有大小限制 在链表中插入/删除更快，在数组中访问更快。 从多线程的角度来看，链表更好。

Eric Lippert最近发表了一篇关于数组应该保守使用的原因之一的文章。

另一个很好的原因是链表非常适合高效的多线程实现。这样做的原因是，更改往往是局部的——只影响数据结构局部部分的插入和删除的一两个指针。所以，你可以让多个线程在同一个链表上工作。更重要的是，可以使用cas类型的操作创建无锁版本，并完全避免沉重的锁。

使用链表，迭代器还可以在进行修改时遍历列表。在修改没有冲突的乐观情况下，迭代器可以在没有争用的情况下继续。

对于数组，任何修改数组大小的更改都可能需要锁定数组的很大一部分，事实上，这是在整个数组上没有全局锁的情况下完成的，因此修改会停止全局事务。

维基百科上有很好的章节介绍了它们的区别。

Linked lists have several advantages over arrays. Elements can be inserted into linked lists indefinitely, while an array will eventually either fill up or need to be resized, an expensive operation that may not even be possible if memory is fragmented. Similarly, an array from which many elements are removed may become wastefully empty or need to be made smaller. On the other hand, arrays allow random access, while linked lists allow only sequential access to elements. Singly-linked lists, in fact, can only be traversed in one direction. This makes linked lists unsuitable for applications where it's useful to look up an element by its index quickly, such as heapsort. Sequential access on arrays is also faster than on linked lists on many machines due to locality of reference and data caches. Linked lists receive almost no benefit from the cache. Another disadvantage of linked lists is the extra storage needed for references, which often makes them impractical for lists of small data items such as characters or boolean values. It can also be slow, and with a naïve allocator, wasteful, to allocate memory separately for each new element, a problem generally solved using memory pools.

http://en.wikipedia.org/wiki/Linked_list

Arrays make sense where the exact number of items will be known, and where searching by index makes sense. For example, if I wanted to store the exact state of my video output at a given moment without compression I would probably use an array of size [1024][768]. This will provide me with exactly what I need, and a list would be much, much slower to get the value of a given pixel. In places where an array does not make sense there are generally better data types than a list to deal with data effectively.

没有人再编写自己的链表了。那太愚蠢了。使用链表需要更多代码的前提是错误的。

如今，构建链表只是学生们的一个练习，以便他们能够理解这个概念。相反，每个人都使用预先构建的列表。在c++中，根据我们问题中的描述，这可能意味着stl向量(#include <vector>)。

因此，选择链表还是数组完全是权衡每个结构相对于应用程序需求的不同特征。克服额外的编程负担应该对决策没有任何影响。