【IT专家】在C#中将字节数组转换为短数组

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在C＃中将字节数组转换为短数组

2009/07/09 28406 I’m currently reading a file and wanted to be able to convert the array of bytes obtained from the file into a short array.

我正在读取一个文件，并希望能够将从文件中获取的字节数组转换为一个短数

组。

How would I go about doing this?

我该怎么做呢？

15

One possibility is using Enumerable.Select:

一种可能是使用Enumerable.Select：

byte[] bytes;var shorts = bytes.Select(b = (short)b).ToArray(); Another is to use Array.ConvertAll:

另一种是使用Array.ConvertAll：

byte[] bytes;var shorts = Array.ConvertAll(bytes, b = (short)b); 49

Use Buffer.BlockCopy.

使用Buffer.BlockCopy。

Create the short array at half the size of the byte array, and copy the byte data in:

以字节数组大小的一半创建短数组，并将字节数据复制到：

short[] sdata = new short[(int)Math.Ceiling(data.Length / 2)];Buffer.BlockCopy(data, 0, sdata, 0, data.Length); It is the fastest method by far.

这是迄今为止最快的方法。

2

A shorthard is a compound of two bytes. If you are writing all the shorts to the file as true shorts then those conversions are wrong. You must use two bytes to get the true short

value, using something like:

shorthard 是两个字节的复合。如果你把所有短片都写成真正的短片，那么这些转