我们如何在vb.net中更改数组大小 [英] How we change array size in vb.net

问题描述

我声明了Dim arr1(2) as string

我需要根据一些输入来更改数组大小.

例如.我想将数组大小从2更改为4，我需要使用哪种方法?

I declared Dim arr1(2) as string

I need to change array size based on some input.

Eg. I want to change array size from 2 to 4, what method would I need to use?

推荐答案

数组设计不佳，无法调整大小.相反，如果您需要任何大小可变的内容，请始终使用System.Collections.Generic.List<string>(或任何其他元素类型)；否则，请使用System.Collections.Generic.List<string>(或其他任何元素类型).您可以使用其方法ToArray返回数组.

—SA

Arrays are poorly designed for re-size. Instead, if you need anything with variable size, always use System.Collections.Generic.List<string> (or any other element type); you can get back to array using its method ToArray.

—SA

尝试 Array.Resize(arr1, 4).

Redim arr1(4) as string
'' if u r trieng to preserve previous data than 
Redim preserve arr1(4) as string

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