我的世界用命令方块怎么制作铁轨

铁轨代码：/summon MinecartCommandBlock ~-1 ~ ~ {Riding:{id:"MinecartCommandBlock",Riding:{id:"MinecartCommandBlock",Riding:{id:"MinecartCommandBlock",Command:"/setblock ~-1 ~1 ~ 0 0 destroy"},Command:"/setblock ~-1 ~ ~ 0 0 destroy"},Command:"/setblock ~-1 ~-2 ~ 152 0 replace"},Command:"/setblock ~-1 ~-1 ~ 157 0 replace"}。