转换清单 <char> 将二进制字符串表示为ASCII C＃

Question

I have a list of chars that represents a binary string.

List<char> myCharList = new List<char>();

For example, the charList holds the ascii H which represented by the binary sequence: 01001000

I try to convert this List into ASCII so I can show it in a Text Block.

Thanks

Answer 1

try this

string binary = "01001000";
string result =  Encoding.ASCII.GetString(binary.SplitByLength(8).Select(x => Convert.ToByte(x, 2)).ToArray());

UPDATE : SplitByLength:

public static IEnumerable<string> SplitByLength(this string str, int maxLength)
{
    for (int index = 0; index < str.Length; index += maxLength)
    {
        yield return str.Substring(index, Math.Min(maxLength, str.Length - index));
    }
}

Answer 2

another approach without linq

string binary = "01001000";
var list = new List<Byte>();
for (int i = 0; i < binary.Length; i += 8)
{
    if (binary.Length >= i + 8)
    {
        String t = binary.Substring(i, 8);
        list.Add(Convert.ToByte(t, 2));
    }
}
string result = Encoding.ASCII.GetString(list.ToArray()); // H

Answer 3

this should give you byte representation of an ASCII binary string:

static void Main(string[] args)
{
    List<char> chars = new List<char> {'1', '0', '0', '0', '0','0','1'};
    chars.Reverse();
    int t = 0;
    for (int i = 0; i < chars.Count; i++)
    {
        if (chars[i] == '1') t += (int)Math.Pow(2, i);
    }
    Console.WriteLine("{0} represents {1}",t,(char)t );
    Console.Read();
}

this should give you ASCII representations of bytes. Remember that on each system the sizes of a char can differ, so this code will use the systems default size for a char:

static void Main(string[] args)
{

    List<char> chars = new List<char> {'A', 'E', 'L', 'L', 'O'};
    foreach (var c in chars)
    {
        string s = "";
        for (int i = 0; i < (sizeof(char) * 8); i++)
        {
            s = (1 & ((byte)c >> i)) + s;
        }
        Console.WriteLine("{0} represents {1}",c,s );
    }
    Console.Read();
}