C#代码：byte[] 转 十六进制字符串

 /// <summary>
/// 字节数组转16进制字符串：空格分隔
/// </summary>
/// <param name="byteDatas"></param>
/// <returns></returns>
public string ToHexStrFromByte(byte[] byteDatas)
{
    StringBuilder builder = new StringBuilder();
    for (int i = 0; i < byteDatas.Length; i++)
    {
        builder.Append(string.Format("{0:X2} ", byteDatas[i]));
    }
    return builder.ToString().Trim();
}