/// <summary>
/// 16进制 To 二进制
/// </summary>
/// <param name="data">字符串</param>
/// <returns>byte[]数据</returns>
public static byte[] HexToBinary(string data)
{
if ((data == null) || ((data.Length % 2) != 0))
{
return(null);
}
byte[] buffer = new byte[data.Length / 2];
for (int i = 0; i < buffer.Length; i++)
{
int num2 = CharUtil.HexToInt(data[2 * i]);
int num3 = CharUtil.HexToInt(data[(2 * i) + 1]);
if ((num2 == -1) || (num3 == -1))
{
return(null);
}
buffer[i] = (byte)((num2 << 4) | num3);
}
return(buffer);
}