/// <summary>
/// 从卡片中读卡扇区某些块中的数据,失败返回空
/// </summary>
/// <param name="cardID">卡片的卡号（为null或空时不检查卡号是否一致）</param>
/// <param name="section">扇区（0~15）</param>
/// <param name="block">起始块号（0~3）</param>
/// <param name="count">读取块数(1~3)</param>
/// <param name="key">密钥</param>
/// <param name="successBuz">成功是否发出提示音</param>
/// <param name="failBuz">失败是否发出提示音</param>
/// <param name="initKey">密钥验证失败后，是否初始化扇出密钥</param>
/// <returns></returns>
public ReadCardResult ReadSection(string cardID, int section, int block, byte count, byte[] key, bool successBuz, bool failBuz, bool initKey)
{
bool originalStarted = _Started;
if (originalStarted)
{
StopReadCard(); //正在读卡，先停止
WaitForReading(); //等待读卡完成
}
ReadCardResult result = null;
try
{
if (HadActiveReader)
{
result = _ActiveReader.ReadSection(cardID, section, block, count, key, successBuz, failBuz, initKey);
}
else
{
foreach (ICardReader reader in _Readers)
{
result = reader.ReadSection(cardID, section, block, count, key, successBuz, failBuz, initKey);
if (result != null && !string.IsNullOrEmpty(result.CardID))
{
_ActiveReader = reader;
break;
}
}
if (result == null)
{
result = new ReadCardResult();
result.ResultCode = CardOperationResultCode.InitFail;
}
}
}
catch (ThreadAbortException ex)
{
}
catch (Exception ex)
{
ExceptionPolicy.HandleException(ex);
}
if (originalStarted)
{
BeginReadCard(); //恢复读卡
}
return(result);
}