private void addButton_Click(object sender, EventArgs e)
{
var net = networkComBox.SelectedItem as System.Net.NetworkInformation.NetworkInterface;
var model = IpSwitchHelper.CreateDefault(net?.Id);
nameMaskedTextBox.Text = "新方案" + (itemListBox.Items.Count + 1);
ipMaskedTextBox.Text = model.IpAddress;
subnetMaskedTextBox.Text = model.SubnetMask;
gateMaskedTextBox.Text = model.Gateway;
dnsMaskedTextBox.Text = model.DNS;
idMaskedTextBox.Text = tempId;
itemListBox.SelectedIndex = -1;
}