西尾泰和のブログ

>>> import javax.sound.midi.MidiSystem as MidiSystem
>>> synthe = MidiSystem.getSynthesizer()
>>> synthe.open()
>>> c = synthe.channels[0]
>>> c.noteOn(48, 127)

>>> def ding(n):
...     c.noteOn(n, 127)
...     sleep(0.25)
...     c.noteOff(n)
...
>>> ding(80)

>>> def hanoi(numPlate, frm, to, via):
...     if numPlate == 1:
...             move(frm, to)
...     else:
...             hanoi(numPlate - 1, frm, via, to)
...             move(frm, to)
...             hanoi(numPlate - 1, via, to, frm)
...
>>> def move(frm, to):
...     print frm, "=>", to
...
>>> hanoi(4, 1, 3, 2)
1 => 2
1 => 3
2 => 3
1 => 2
3 => 1
3 => 2
1 => 2
1 => 3
2 => 3
2 => 1
3 => 1
2 => 3
1 => 2
1 => 3
2 => 3

>>> def move(frm, to):
...     ding(frm)
...     ding(to)
...
>>> hanoi(4, 55, 48, 52)