我的世界-红石自动化 自动建造铁轨教程

　　命令方块的玩法也是比较好玩的，可以通过命令来创造世界。

　　先放一个命令方块,命令方块上放一个按钮

　　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"}