form.KeyPreview属性设为TRUE;//表示响应键盘事件.
private void Form1_KeyDown(object sender, System.Windows.Forms.KeyEventArgs e)
{
string strEnter = e.KeyCode.ToString();//获取 KeyDown 事件的键盘代码。
if (strEnter == "Enter")//如果是按Enter就响应button1_Click
{
button1_Click(sender, e);
}
}

private void button1_Click(object sender, System.EventArgs e)
{
this.Close();
}

[此贴子已经被作者于2005-12-16 19:45:54编辑过]