字符串到原始字节数组

问题描述

我有一个包含二进制数据(非文本数据)的字符串.

I have a string which contains binary data (non-text data).

如何将其转换为原始字节数组?

How do I convert this to a raw byte array?

推荐答案

根据定义，C#中的字符串不包含二进制数据.它由一系列Unicode字符组成.

A string in C# - by definition - does not contain binary data. It consists of a sequence of Unicode characters.

如果您的字符串在ASCII(7位)字符集中仅包含Unicode字符，则可以使用编码.ASCII将字符串转换为字节:

If your string contains only Unicode characters in the ASCII (7-bit) character set, you can use Encoding.ASCII to convert the string to bytes:

byte[] result = Encoding.ASCII.GetBytes(input);

如果您的字符串包含u0000-u00ff范围内的Unicode字符，并且想要将它们解释为字节，则可以将这些字符转换为字节:

If you have a string that contains Unicode characters in the range u0000-u00ff and want to interpret these as bytes, you can cast the characters to bytes:

byte[] result = new byte[input.Length];
for (int i = 0; i < input.Length; i++)
{
    result[i] = (byte)input[i];
}

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