/// <summary> /// 16进制字符转换为byte数组 /// </summary> /// <param name="hexString">偶数位,由16进制字符[0-9a-fA-F]组成</param> /// <returns>null为转换失败</returns> private byte[] HexStringToBytes(string hexString) { if (string.IsNullOrEmpty(hexString)) return null; int hexStringLength = hexString.Length; if (hexStringLength % 2 != 0) return null; Regex r = new Regex(@"[0-9a-fA-F]"); if (!r.IsMatch(hexString)) return null; int bufferLength = hexStringLength / 2; byte[] buffer = new byte[bufferLength]; for (int i = 0; i < bufferLength; i++) { buffer[i] = Convert.ToByte(hexString.Substring(i * 2, 2), 16); //2个16进制字符转换为一个byte } return buffer; }
时间: 2024-10-05 05:02:04