C# 判斷 上/下/左/右/ESC/Enter 鍵盤輸入

 

private void textBox1_KeyDown(object sender, KeyEventArgs e)
{
    String direction;
    if (e.KeyCode == Keys.Down)
        direction = “down”;
    if (e.KeyCode==Keys.Left)
        direction = “left”;
    if (e.KeyCode==Keys.Right)
        direction = “right”;
    if (e.KeyCode==Keys.Up)
        direction = “up”;
    if (Keys.Escape)
        direction = “ESC”;
    if (e.KeyCode == Keys.Enter)
        direction = “Enter”;
}