JavaScript汉诺塔问题解决方法

<script language="javascript"> var han=function (disc,src,aux,dst){  if(disc>0){   han(disc-1,src,dst,aux);   document.writeln("move disc "+disc+" from "+src+" to "+dst+"<br/>");   han(disc-1,aux,src,dst);  } }; han(10,"src","aux","dst");</script>