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private void Form_Load(object sender, EventArgs e)
{
//初始化下拉串口名称列表框
ports = MulGetHardwareInfo(HardwareEnum.Win32_PnPEntity, "Name");
if (ports != null)
{
Box_COM.Items.AddRange(ports);
}
Box_COM.SelectedIndex = Box_COM.Items.Count > 0 ? 0 : -1;
Box_Baud.SelectedIndex = Box_Baud.Items.IndexOf("9600");
Button_ConnectionStatus.ForeColor = comm.IsOpen ? Color.Green : Color.Black;
}