C#利用串口控件的问题。为啥提示出错呢。

[f1305147]

        private void Form1_Load(object sender, EventArgs e)
        {
            foreach (string commName in System.IO.Ports.SerialPort.GetPortNames()) ;
            this.comboBox1.Items.Add(commname);这个commname为啥出错呢？
            this.comboBox1.SelectedIndex = 0;
        }

[蔡袅]

foreach (string commName in System.IO.Ports.SerialPort.GetPortNames()) ;
注意后面的分号

[蔡袅]

private void Form1_Load(object sender, EventArgs e)
{
foreach (string commName in System.IO.Ports.SerialPort.GetPortNames())
{
this.comboBox1.Items.Add(commname);这个commname为啥出错呢？
}
this.comboBox1.SelectedIndex = 0;
}