买了个二手机械键盘，自己写了个键盘测试工具。
　　不是很精致，无需安装，简单实用。
　　WPF项目 附代码：
public MainWindow()
{
this.InitializeComponent();
EventManager.RegisterClassHandler(typeof(Window)，
Keyboard.KeyUpEvent， new KeyEventHandler(Soc_KeyDown)， true);
}
private void Clear_Click(object sender， RoutedEventArgs e)
{
txb_history.Text = "";
txt_thiskey.Text = "";
}
private void Soc_KeyDown(object sender， KeyEventArgs e)
{
Key k = e.Key;
string Ks = k.ToString();
if (k == Key.System)
{
Ks = "F10";
}
txt_thiskey.Text = Ks;
string history = "";
if (txb_history.Text != "")
{
history = txb_history.Text + "，";
}
history += Ks;
List<String> KeyList = history.Split('，').ToList();
if (KeyList.Count > 10)
{
KeyList.RemoveAt(0);
}
history = "";
foreach (var key in KeyList)
{
history += key + "，";
}
history = history.Substring(0， history.Length - 1);
txb_history.Text = history;
}