Winform下的键盘事件

KeyPress：非控制按键

KeyDown：按键按下触发

KeyUp：按键弹起触发

private void Form1_KeyPress(object sender, KeyPressEventArgs e)
{
    if (e.KeyChar.ToString() == Keys.A.ToString())
    {
        MessageBox.Show("A");
    }
}

private void Form1_KeyDown(object sender, KeyEventArgs e)
{
    if (e.KeyData == Keys.F8)
    {
        MessageBox.Show("F8");
    }
    if (e.Modifiers == Keys.Alt && e.KeyCode == Keys.D0)
    {
        MessageBox.Show("Alt + 0");
    }
    if (e.Modifiers == Keys.Shift && e.KeyCode == Keys.A)
    {
        MessageBox.Show("Shift + A");
    }
}

private void Form1_KeyUp(object sender, KeyEventArgs e)
{
    if (e.Modifiers == Keys.Control && e.KeyCode == Keys.C)
    {
        MessageBox.Show("Ctrl + C");
    }
}

事件不触发时，尝试：

KeyPreview=true;