有三根柱子A，B，C，A柱子上有N个盘子，从小到大依次叠放，要求把A上的盘子都移到C上，B可以作为临时存放，移动的时候必须始终遵循小盘子在大盘子上面，且每次只能移动一个盘子。-There are three pillars A, B, C, A with their N dishes, from small stacked in turn requires the plates are A move to C, B can be used as A temporary storage, move must always follow the small plate in the big on the plate, and every time can move A plate.