将ASCII字符串转换为普通字符串C# [英] Converting a string of ASCII into normal string C#

问题描述

可能重复:
.NET从十六进制值的字符串转换转换为Unicode字符(支持不同的代码页)

Possible Duplicate:
.NET Convert from string of Hex values into Unicode characters (Support different code pages)

试图将包含ASCII字符串的字符串转换为文本，我似乎只能找到从Byte []转换的System.Text.ASCIIEncoding.ASCII.GetString，但是在这种情况下，我希望能够从字符串中做到这一点.

Looking to convert a string containing an ASCII string into text, i seem to be only be able to find System.Text.ASCIIEncoding.ASCII.GetString which converts from a Byte[] but in this circumstance I would like to be able to do it from a string.

its a string containing ASCII hex: For example : ASCI = 47726168616D would equal Graham

是否有任何内置函数?帮助将不胜感激，谢谢.

Are there any built in functions for this? help would be appreciated, thank you.

推荐答案

private static string GetStringFromAsciiHex(String input)
{
    if (input.Length % 2 != 0)
        throw new ArgumentException("input");

    byte[] bytes = new byte[input.Length / 2];

    for (int i = 0; i < input.Length; i += 2)
    {
        // Split the string into two-bytes strings which represent a hexadecimal value, and convert each value to a byte
        String hex = input.Substring(i, 2);
        bytes[i/2] = Convert.ToByte(hex, 16);                
    }

    return System.Text.ASCIIEncoding.ASCII.GetString(bytes);
}

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