打造个性化的功能强大的Jquery虚拟键盘(VirtualKeyboard)(4)

                }
                break;
            case "shift_left":
            case "shift_right":
                if (i.shiftKey) break;
                iI = iI ^ Z;
                break;
            case "alt_left":
            case "alt_right":
            case "ctrl_left":
            case "ctrl_right":
                iI = iI ^ (i.altKey << 1 ^ w) ^ (i.ctrlKey << 2 ^ W);
                break;
            default:
                if (_) DOM.CSS(e).addClass(y.buttonDown);
                break
        }
        if (X != iI) {
            B(iI);
            b();
        }
        i.preventDefault();
        i.stopPropagation();
    };