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"}。
详细答案：
命令方块代码：
/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"}
在命令方块的W方向 放一块红石,红石上方放一个激活铁轨
再右击按钮激活命令方块
激活后会出现命令矿车,推一下命令矿车试试
4个方向不同的代码(往哪个方向挖就用哪个方向的代码)：
W方向：
/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"}
S方向：
/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 ~ ~-2 ~1 152 0 replace"},Command:"/setblock ~ ~-1 ~1 157 0 replace"}
E方向：
/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"}
N方向：
/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 ~ ~-2 ~-1 152 0 replace"},Command:"/setblock ~ ~-1 ~-1 157 0 replace"}
