动画演示汉诺塔的整个过程，盘子数目可选，不能太多，不然图形显示效果不好，而且整个演示过程也会很长，按空格键下一步-HANOR animation demonstration of the whole process, the number of optional dishes, not too many, not graphics, and good The whole demonstration process will be very long, according to the space bar to the next step