使用 LINQ 拆分数组 [英] Splitting an array using LINQ

问题描述

我有一个像这样的一维集合:

I have a collection uni-dimensional like this:

[1,2,4,5.....n]

我想将该集合转换为二维集合，如下所示:

I would like to convert that collection in a bi-dimensional collection like this:

[[1,2,3],
[4,5,6],
...]

基本上我想分组或拆分，如果你想，'n'个成员的数组

Basically I want to group or split if you want, the array in groups of 'n' members

我可以用 foreach 语句来完成，但我目前正在学习 LINQ，所以我不想遍历所有元素并手动创建一个新数组，我想使用 LINQ 功能(如果适用)

I can do it with a foreach statement, but I am currently learning LINQ so instead of iterating through all elements and create a new array manually I would like to use the LINQ features (if applicable)

是否有任何 LINQ 函数可以帮助我完成此操作??

Is there any LINQ function to help me to accomplish this??

我在考虑 GroupBy 或 SelectMany 我不知道他们是否会帮助我，但他们可能会

I was thinking in the GroupBy or SelectMany I do not know if they will help me though but they might

任何帮助将不胜感激 =) :**

Any help will be truly appreciate it =) :**

推荐答案

您可以按索引除以批量大小进行分组，如下所示:

You can group by the index divided by the batch size, like this:

var batchSize = 3;
var batched = orig
    .Select((Value, Index) => new {Value, Index})
    .GroupBy(p => p.Index/batchSize)
    .Select(g => g.Select(p => p.Value).ToList());

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