好的

我的代码如下，但按下“C”键后什么反应都没有，不知问题在哪？

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

namespace WindowsApplication2
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
public void from1_Keydown(object sender, KeyEventArgs e)
{
if (e.KeyCode == Keys.C)
{
this.Close();

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

private void Form1_Load(object sender, EventArgs e)
{

}
}
}