为什么是链表而不是数组?有些人已经说过，插入和删除的速度更快。

但也许我们不需要生活在两者的限制下，同时获得两者的优点……是吗?

对于数组删除，您可以使用'Deleted'字节来表示一行已被删除的事实，因此不再需要重新组织数组。为了减轻插入或快速更改数据的负担，可以使用链表。然后，在引用它们的时候，让你的逻辑先搜索一个，再搜索另一个。因此，将它们结合使用可以使您获得两者的最佳效果。

If you have a really large array, you could combine it with another, much smaller array or linked list where the smaller one hold thes 20, 50, 100 most recently used items. If the one needed is not in the shorter linked list or array, you go to the large array. If found there, you can then add it to the smaller linked list/array on the presumption that 'things most recently used are most likey to be re-used' ( and yes, possibly bumping the least recently used item from the list ). Which is true in many cases and solved a problem I had to tackle in an .ASP security permissions checking module, with ease, elegance, and impressive speed.

这里有一个快速的方法:移除物品更快。

合并两个链表(特别是两个双链表)比合并两个数组快得多(假设合并是破坏性的)。前者取O(1)，后者取O(n)。

编辑:澄清一下，我在这里指的是无序意义上的“合并”，而不是归并排序。也许"串联"这个词更合适。

除了插入到列表中间更容易之外——从链表中间删除也比从数组中删除容易得多。

但坦率地说，我从未使用过链表。每当我需要快速插入和删除时，我也需要快速查找，所以我使用HashSet或Dictionary。

While many of you have touched upon major adv./dis of linked list vs array, most of the comparisons are how one is better/ worse than the other.Eg. you can do random access in array but not possible in linked list and others. However, this is assuming link lists and array are going to be applied in a similar application. However a correct answer should be how link list would be preferred over array and vice-versa in a particular application deployment. Suppose you want to implement a dictionary application, what would you use ? Array : mmm it would allow easy retrieval through binary search and other search algo .. but lets think how link list can be better..Say you want to search "Blob" in dictionary. Would it make sense to have a link list of A->B->C->D---->Z and then each list element also pointing to an array or another list of all words starting with that letter ..

A -> B -> C -> ...Z
|    |    |
|    |    [Cat, Cave]
|    [Banana, Blob]
[Adam, Apple]

Now is the above approach better or a flat array of [Adam,Apple,Banana,Blob,Cat,Cave] ? Would it even be possible with array ? So a major advantage of link list is you can have an element not just pointing to the next element but also to some other link list/array/ heap/ or any other memory location. Array is a one flat contigous memory sliced into blocks size of the element it is going to store.. Link list on the other hand is a chunks of non-contigous memory units (can be any size and can store anything) and pointing to each other the way you want. Similarly lets say you are making a USB drive. Now would you like files to be saved as any array or as a link list ? I think you get the idea what I am pointing to :)

快速插入和删除确实是链表的最佳参数。如果您的结构是动态增长的，并且不需要对任何元素进行固定时间的访问(例如动态堆栈和队列)，链表是一个很好的选择。