查询谱面 
You can specify the chart difficulty to be drawn using either an abbreviation (e.g., nov, xcd), the full name (e.g., novice, maximum), or a difficulty index (for example, 4 represents the fourth difficulty level of the song).
The following keywords can be included in the command input to control chart rendering:
Arrangement Modes
mirrormirmsrandomsranrandomran
Left Laser Color Control
lbluelredlgreenlyellow
Right Laser Color Control
rbluerredrgreenryellow