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數據接收的輸出http://postimg.org/image/5hvqgosc7/我可以將從串行端口收到的數據轉換爲只有空格和符號的數字嗎?
這是RFID標籤號碼的字符串顯示。 這真的是一個顯示所有rfid或我可以改變它顯示數字只有沒有空格和符號?
或者在我的代碼中有問題。
這是我的代碼:
private void Form1_Load(object sender, EventArgs e)
{
cn.ConnectionString = @"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:\Users\Thesis\Desktop\Projects\Employees.accdb;Persist Security Info=True";
cmd.Connection = cn;
this.myDelegate = new AddDataDelegate(AddDataMethod);
rfidbox.Enabled = true;
string[] ports = SerialPort.GetPortNames();
foreach (string port in ports)
{
SerialPort mySerialPort = new SerialPort(port);
mySerialPort.BaudRate = 9600;
mySerialPort.Parity = Parity.None;
mySerialPort.StopBits = StopBits.One;
mySerialPort.DataBits = 8;
mySerialPort.ReadTimeout = 3000;
mySerialPort.Handshake = Handshake.None;
mySerialPort.DataReceived += new SerialDataReceivedEventHandler(DataReceivedHandler);
mySerialPort.Open();
}
}
private void DataReceivedHandler(object sender, SerialDataReceivedEventArgs e)
{
SerialPort sp = (SerialPort)sender;
string s = sp.ReadExisting();
rfidbox.Invoke(this.myDelegate, new Object[]{s});
}
public void AddDataMethod(String myString)
{
rfidbox.AppendText(myString);
}
感謝提前的幫助。
非常感謝你,我得到了主意上帝保佑 – user3410770
呃:-))很高興能有所幫助。 –