C#响应Enter键事件写法

C# 响应KeyDown (| KeyPres | KeyUp)事件

private void tbTest_KeyDown(object sender, System.Windows.Forms.KeyEventArgs e)
{
    //判断按下的键是否为Enter键
    if(e.KeyValue==Keys.Enter)
    {
        //编写业务代码
        MessageBox.Show("You press the enter key");
    }
}