将BitArray转换为小字节数组 [英] Convert BitArray to a small byte array

问题描述

我已经阅读了有关BitArray转换的其他文章，并亲自尝试了几次，但似乎都没有提供想要的结果.

I've read the other posts on BitArray conversions and tried several myself but none seem to deliver the results I want.

我的情况就是这样，我有一些控制LED灯条的c#代码.要向测试条发出单个命令，我最多需要28位

My situation is as such, I have some c# code that controls an LED strip. To issue a single command to the strip I need at most 28 bits

1位用于在2条LED灯条之间进行选择

1 bit for selecting between 2 led strips

6个位置(最多48个可寻址LED)

6 for position (Max 48 addressable leds)

颜色x3为7(颜色值为0-127)

7 for color x3 (0-127 value for color)

假设我为该结构创建一个BitArray，作为示例，我们将其随机填充.

Suppose I create a BitArray for that structure and as an example we populate it semi-randomly.

        BitArray ba = new BitArray(28);

        for(int i = 0 ;i < 28; i++)
        {
            if (i % 3 == 0)
                ba.Set(i, true);
            else
                ba.Set(i, false);
        }

现在，我想将这28位保留在4个字节中(最后4位可以是一个停止信号)，最后将其转换为字符串，这样我就可以通过USB将字符串发送到LED灯条.

Now I want to stick those 28 bits in 4 bytes (The last 4 bits can be a stop signal), and finally turn it into a String so I can send the string via USB to the LED strip.

我尝试过的所有方法都将1和0转换为文字字符，这不是目标.

All the methods I've tried convert each 1 and 0 as a literal char which is not the goal.

在C#中是否有一种直接的方法来进行位压缩?

Is there a straightforward way to do this bit compacting in C#?

推荐答案

好吧，您可以使用

Well you could use BitArray.CopyTo:

byte[] bytes = new byte[4];
ba.CopyTo(bytes, 0);

或者:

int[] ints = new int[1];
ba.CopyTo(ints, 0);

目前尚不清楚您想要的 string 表示形式是什么-您正在处理的是自然的二进制数据，而不是文本数据...

It's not clear what you'd want the string representation to be though - you're dealing with naturally binary data rather than text data...

这篇关于将BitArray转换为小字节数组的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！