/// <summary>
/// 根据tag获取tlv的值
/// </summary>
/// <param name="entities"></param>
/// <param name="tag"></param>
/// <returns></returns>
public static TLVEntity GetValueByTag(List <TLVEntity> entities, string tag)
{
TLVEntity resultEntity = null;
var query = entities.SingleOrDefault(e => CodeConvert.ToHexString(e.Tag).ToUpper() == tag);
if (query == null)
{
foreach (var tlv in entities)
{
if (tlv.SubTLVEntity != null)
{
TLVEntity result = GetValueByTag(tlv.SubTLVEntity, tag);
if (result != null && result.Length.Length > 0)
{
return(result);
}
}
}
}
else
{
resultEntity = query;
}
return(resultEntity);
}
/// <summary>
/// 转化成TL格式的字符串
/// </summary>
/// <param name="bytes"></param>
/// <returns></returns>
public static List <string> ToTLStringList(byte[] bytes)
{
List <string> list = new List <string>();
for (int i = 0; i < bytes.Length; i++)
{
List <byte> pdo = new List <byte>();
if ((bytes[i] & 0xF) == 0xF)//判断tag是否占两位
{
pdo.AddRange(new byte[] { bytes[i++], bytes[i++] });
}
else
{
pdo.Add(bytes[i++]);
}
if ((bytes[i] & 0x80) == 0x80)//判读length是否占两位
{
pdo.AddRange(new byte[] { bytes[i++], bytes[i++] });
}
else
{
pdo.Add(bytes[i]);
}
list.Add(CodeConvert.ToHexString(pdo.ToArray()));
}
return(list);
}