数组随机排序 [英] array random sort

问题描述

如何获取数组或arraylist，并随机排序？就像假设

项目是（1,2,3,4,5）并且我想让它以随机顺序

（2,3 ，1,4,5）。你是怎样做的？我认为这是对数组或数组的调用

列出了排序方法，但我不确定你是怎么做的。

How do I take an array or arraylist, and sort it randomly? Like suppose the
items in it are (1,2,3,4,5) and I want to get it to be in a random order
(2,3,1,4,5). How do you do that? I think it''s a call to the array or array
lists sort method, but i''m not exactly sure how you do it.

推荐答案

" gl" < [e-mail]>在消息中写道

news：7E ********************************** @ microsof t.com ...

"gl" <[e-mail]> wrote in message
news:7E**********************************@microsof t.com...

如何获取数组或arraylist，并对其进行随机排序？就像假设
其中的项目是（1,2,3,4,5）并且我想让它以随机顺序
（2,3,1,4 ，5）。你是怎样做的？我认为这是对数组或数组的调用
列出排序方法，但我不确定你是怎么做的。

How do I take an array or arraylist, and sort it randomly? Like suppose
the
items in it are (1,2,3,4,5) and I want to get it to be in a random order
(2,3,1,4,5). How do you do that? I think it''s a call to the array or array
lists sort method, but i''m not exactly sure how you do it.

public static List< T> ; shuffledList（List< T> listToShuffle）

{

/ *

*列出从listToShuffle中挑选的元素的新列表

*随机排序。

* /


List< int> ints = new List< int>（listToShuffle.Count）; // 0,1，

2，...

for（int i = 0; i< listToShuffle.Count; i ++）

ints.Add（i）;


List< T> randList = new List< T>（listToShuffle.Capacity）;


for（int k = 0; k< listToShuffle.Count; k ++）

{

int randIndx = Common.rand.Next（ints.Count）; //随机

从0,2，..还没有被选中

int randK = ints [randIndx];

randList.Add（listToShuffle [randK]）;

ints.RemoveAt（randIndx）;

}


返回randList;

}

public static List<T> shuffledList(List<T> listToShuffle)
{
/*
* Make a new list of elements picked from listToShuffle
* in a random order.
*/

List<int> ints = new List<int>(listToShuffle.Count); //0, 1,
2, ...
for (int i = 0; i < listToShuffle.Count; i++)
ints.Add(i);

List<T> randList = new List<T>(listToShuffle.Capacity);

for (int k = 0; k < listToShuffle.Count; k++)
{
int randIndx = Common.rand.Next(ints.Count); //random
from 0, 2, .. not already picked
int randK = ints[randIndx];
randList.Add(listToShuffle[randK]);
ints.RemoveAt(randIndx);
}

return randList;
}

" gl" < [e-mail]>在消息中写道

news：7E ********************************** @ microsof t.com ...

"gl" <[e-mail]> wrote in message
news:7E**********************************@microsof t.com...

如何获取数组或arraylist，并对其进行随机排序？就像假设其中的
项目是（1,2,3,4,5）并且我想让它以随机顺序
（2,3,1,4,5）。你是怎样做的？我认为这是对数组或数组的调用
列出排序方法，但我不确定你是怎么做的。

How do I take an array or arraylist, and sort it randomly? Like suppose the
items in it are (1,2,3,4,5) and I want to get it to be in a random order
(2,3,1,4,5). How do you do that? I think it''s a call to the array or array
lists sort method, but i''m not exactly sure how you do it.

嗅探......闻闻......闻起来像是做作业。


搜索google群组进行随机播放算法

你应该找到你需要的东西
< br $>
祝你好运

比尔

Sniff....Sniff....Smells like homework.

Search google groups for shuffle algorithm
You should find what you need

Good luck
Bill

我忘了提到Common.rand是Random的一个实例，是一个

类普通的静态成员。


你可以在
http://www.frontiernet.net/~fredm/dps/Contents.htm


" Fred Mellender" <无**************** @ frontiernet.net>在消息中写道

news：3h ***************** @ news02.roc.ny ...

I forgot to mention that Common.rand is an instance of Random, and is a
static member of class Common.

You can find this, and some other useful utilities, at
http://www.frontiernet.net/~fredm/dps/Contents.htm

"Fred Mellender" <no****************@frontiernet.net> wrote in message
news:3h*****************@news02.roc.ny...

gl < [e-mail]>在消息中写道
新闻：7E ********************************** @ microsof t.com。 ..

"gl" <[e-mail]> wrote in message
news:7E**********************************@microsof t.com...

如何获取数组或arraylist，并随机排序？就像假设
其中的项目是（1,2,3,4,5）并且我想让它以随机顺序
（2,3,1,4 ，5）。你是怎样做的？我认为这是对数组或
数组的调用列表排序方法，但我不确定你是怎么做的。

How do I take an array or arraylist, and sort it randomly? Like suppose
the
items in it are (1,2,3,4,5) and I want to get it to be in a random order
(2,3,1,4,5). How do you do that? I think it''s a call to the array or
array
lists sort method, but i''m not exactly sure how you do it.

public静态列表< T> shuffledList（List< T> listToShuffle）
{
/ *
*以随机顺序列出从listToShuffle中挑选的元素的新列表。
* /

List< int> ints = new List< int>（listToShuffle.Count）; // 0,1，
2，...
for（int i = 0; i< listToShuffle.Count; i ++）
ints.Add（i）;

列表< T> randList = new List< T>（listToShuffle.Capacity）;

for（int k = 0; k< listToShuffle.Count; k ++）
{
int randIndx = Common .rand.Next（ints.Count）; //随机
从0,2，..还没有被选中
int randK = ints [randIndx];
randList.Add（listToShuffle [randK]）;
ints.RemoveAt （randIndx）;


返回randList;
}

public static List<T> shuffledList(List<T> listToShuffle)
{
/*
* Make a new list of elements picked from listToShuffle
* in a random order.
*/

List<int> ints = new List<int>(listToShuffle.Count); //0, 1,
2, ...
for (int i = 0; i < listToShuffle.Count; i++)
ints.Add(i);

List<T> randList = new List<T>(listToShuffle.Capacity);

for (int k = 0; k < listToShuffle.Count; k++)
{
int randIndx = Common.rand.Next(ints.Count); //random
from 0, 2, .. not already picked
int randK = ints[randIndx];
randList.Add(listToShuffle[randK]);
ints.RemoveAt(randIndx);
}

return randList;
}

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