/// <summary>
/// 检查当前串口是否可用
/// </summary>
/// <param name="strSerialNo">串口号</param>
/// <returns></returns>
public bool CheckPort(string strSerialNo)
{
try
{
_sp = new SerialPort(strSerialNo, 9600, Parity.None, 8, StopBits.One);
_sp.Open();
if (_sp != null)
{
_sp.Close();
_sp = null;
}
return true;
}
catch
{
MessageBox.Show("当前串口已被占用,请切换串口", "警告提示");
return false;
}
}
C#——串口可用性检查
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转载自blog.csdn.net/qq_20799821/article/details/108520134
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