为什么没有LinkedList？ [英] Why no LinkedList?
问题描述
为什么.NET中没有LinkedList？
标记和扫描GC算法是否存在大量
链接数据的问题？
LinkedList是非常重要的，你有大量的列表并附加一个新的
元素你只是创建这个objekt并设置一个引用，而不是
arraylist你必须复制整个数组，并用双倍大小的
创建一个新数组。
另外删除ArrayList中的元素是一个非常昂贵的
操作：删除元素后面的所有元素都必须被复制以填补
的漏洞。使用LinkedList你只需重新链接到元素即可删除
它们之间的所有内容。
我希望Whidbey提供一个LinkedList但我查看了
beta，什么都没有。
那么这个决定背后的原因是什么？
-
cody
[免费软件，游戏和幽默]
www.deutronium.de.vu || www.deutronium.tk
Cody：
在幕后，它们在.NET中被广泛使用，你可以轻松地自己编写代码。回到C ++的旧时代，我不得不自己编写
，所以我在C＃中做了同样的事情只是为了好玩。如果你搜索google的Linked LIst
C＃有数百个例子......
http://csharpcomputing.com/Tutorials/Lesson9.htm
也许我对ArrayLists错过了你的观点......他们根本不需要使用数组，所以我可能会误解你的观点。
你能解释一下这个部分吗？ c我不认为我会关注你。
" cody" < PL ********** @ gmx.de>在消息中写道
新闻：#c ************** @ TK2MSFTNGP11.phx.gbl ...为什么不是''在.NET中有一个LinkedList吗？
标记和扫描GC算法是否存在大量链接数据的问题？
一个LinkedList非常重要，因为你有巨大的列出并添加一个新的
元素，您只需创建此objekt并设置一个引用，而不是
arraylist，您必须复制整个数组并创建一个双倍大小的新数组。
另外删除ArrayList中的元素是一项非常昂贵的操作：删除元素后面的所有元素都必须复制到
填充空洞。使用LinkedList你只需重新链接到元素即可删除它们之间的所有内容。
我希望Whidbey提供一个LinkedList，但我查看了
测试版，没有任何内容。
那么这个决定背后的原因是什么？
-
[免费软件，游戏和幽默]
www.deutronium.de.vu || www.deutronium.tk
Why isn''t there a LinkedList in .NET?
Was the reason that the mark&sweep GC algorithm has problems with heavily
linked data?
A LinkedList is very important is you have huge lists and append a new
element you just create this objekt and set a reference in contrast to an
arraylist where you have to copy the whole array and create a new one with
the double size.
Additionally removing elements in an ArrayList is a very expensive
operation: all elements behind the removed element has to be copied to fill
the hole. With LinkedList you just have to relink to element to remove
everything between them.
I was hoping that Whidbey would provide a LinkedList but I looked in the
beta and there was nothing.
So what are the reasons behind this decision?
--
cody
[Freeware, Games and Humor]
www.deutronium.de.vu || www.deutronium.tk
Cody:
Behind the scenes they are used all over the place in .NET and you can
easily code one yourself. Back in the old days of C++ I had to write my own
so I did the same in C# just for fun. If you search google for Linked LIst
C# there are hundreds of examples...
http://csharpcomputing.com/Tutorials/Lesson9.htm
Maybe I"m missing your point with ArrayLists though...they don''t necessitate
the use of an Array at all, so I''m probably misunderstanding your point.
Can you explain that part a little more b/c I don''t think I follow you.
"cody" <pl*************************@gmx.de> wrote in message
news:#c**************@TK2MSFTNGP11.phx.gbl...Why isn''t there a LinkedList in .NET?
Was the reason that the mark&sweep GC algorithm has problems with heavily
linked data?
A LinkedList is very important is you have huge lists and append a new
element you just create this objekt and set a reference in contrast to an
arraylist where you have to copy the whole array and create a new one with
the double size.
Additionally removing elements in an ArrayList is a very expensive
operation: all elements behind the removed element has to be copied to fill the hole. With LinkedList you just have to relink to element to remove
everything between them.
I was hoping that Whidbey would provide a LinkedList but I looked in the
beta and there was nothing.
So what are the reasons behind this decision?
--
cody
[Freeware, Games and Humor]
www.deutronium.de.vu || www.deutronium.tk
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