[C#] 鍵盤 KeyChar 值的取得

private void textBox1_KeyPress(object sender, KeyPressEventArgs e) 
       { 
            char Key_Char = e.KeyChar;//判斷按鍵的 Keychar 
            MessageBox.Show(((int)(Key_Char)).ToString());//轉成整數顯示 
        }