//向指定扇区写入指定数据
private static async Task InitValue(byte blockNum, int value)
{
await AuthKey(0);
//await reader.ChangeToISO14443AAsync();
byte[] data = { 0, 0, 0, 1 };
var info = await i14443a.ValueAsync(OperCode.Increase, 4, data, 5);
Console.WriteLine(info.GetSendByteStr());
Console.WriteLine(info.GetRecvByteStr());
Console.WriteLine(info.GetStatusStr());
//if (!await AuthKey((byte)(blockNum / 4))) return;
//byte[] data = BitConverter.GetBytes(value);
//var info = await i14443a.InitValueAsync(blockNum, data);
//Console.WriteLine(info.GetSendByteStr());
//Console.WriteLine(info.GetRecvByteStr());
//if (info.ReturnValue == ReturnMessage.Success)
//{
// Console.WriteLine("值块" + blockNum.ToString() + "初始化成功");
//}
//else
//{
// Console.WriteLine(info.GetStatusStr());
//}
}
/// <summary>
/// 让程序处于工作状态，等待刷卡并扣钱
/// </summary>
/// <param name="coin">每次刷卡扣的钱数</param>
/// <returns></returns>
private async Task Work(int coin, byte blockNum)
{
byte[] data = BitConverter.GetBytes(coin * 100);
while (!ts.IsCancellationRequested)
{
// 选卡
byte[] uid = await Select();
if (uid != null)
{
if (CompareUID(uid, operUID)) //如果此卡之前已经扣过钱且未离开感应区，则不操作
{
continue;
}
}
else
{
operUID = null; //说明卡片已经离开感应区
continue;
}
//证实
if (!await AuthKey((byte)(blockNum / 4)))
{
continue;
}
//读取剩余钱数，判断卡内剩余的钱是否够扣
var info1 = await i14443a.ReadValueAsync(blockNum);
if (info1.ReturnValue == ReturnMessage.Success)
{
int remain = BitConverter.ToInt32(info1.ValueData, 0);
if (remain < coin * 100)
{
string money = Convert.ToString(remain / 100);
this.Dispatcher.Invoke(new Action(() =>
{
txtMsg.AppendText("\r\n卡内余额不足，现剩余：" + money + " 块钱。");
}));
operUID = uid;
continue;
}
}
var info = await i14443a.ValueAsync(OperCode.Decrease, blockNum, data, blockNum); //扣钱
if (info.ReturnValue != ReturnMessage.Success)
{
continue;
}
operUID = uid; //记录被扣钱的标签UID，以防下次重复扣钱
await reader.BeepAsync(5, 0, 1); //蜂鸣器响一声
this.Dispatcher.Invoke(new Action(() =>
{
txtMsg.AppendText("\r\n成功刷卡，扣除" + coin.ToString() + "块钱。");
}));
//读取剩余钱数
info1 = await i14443a.ReadValueAsync(blockNum);
if (info1.ReturnValue == ReturnMessage.Success)
{
int remain = BitConverter.ToInt32(info1.ValueData, 0);
string money = Convert.ToString(remain / 100);
this.Dispatcher.Invoke(new Action(() =>
{
txtMsg.AppendText("\r\n卡内剩余：" + money + " 块钱。");
}));
}
Thread.Sleep(300);
}
}