case 0x45: returnstr = "POWERON"; break;
	case 0x47: returnstr = "MENU"; break;
	case 0x44: returnstr = "TEST"; break;
	case 0x40: returnstr = "+"; break;
	case 0x43: returnstr = "BACK"; break;
	case 0x07: returnstr = "LAST"; break;
	case 0x15: returnstr = "PLAY"; break;
	case 0x09: returnstr = "NEXT"; break;
	case 0x19: returnstr = "-"; break;
	case 0x0d: returnstr = "C"; break;
	case 0x16: returnstr = "0"; break;
	case 0x0c: returnstr = "1"; break;
	case 0x18: returnstr = "2"; break;
	case 0x5e: returnstr = "3"; break;
	case 0x08: returnstr = "4"; break;
	case 0x1c: returnstr = "5"; break;
	case 0x5a: returnstr = "6"; break;
	case 0x42: returnstr = "7"; break;
	case 0x52: returnstr = "8"; break;
	case 0x4a: returnstr = "9"; break;
	default	: returnstr = "UNKNOW"; break;
	
	2Ҫȡ1ķ