这份代码实现了机器人积木问题，运用启发性搜索算法为机器人输出从一个若干个积木堆叠的状态到目标状态的动作序列，如move(a,b),moveToTable(c),move(e,a)-this is a code about automatically calculate the action path for a robot to change one status of building blocks to another another status.