这次为大家带来的是1.7.2版本中矿车命令块方面的更改介绍，感兴趣的小伙伴们一起来看看我的世界1.7.2更新内容之方块命令吧。
只能使用/give item id 获得422方块或者minecraft:hopper_命令方块或者使用指令/summon
Activate using activator rails
Run their command every so often as long as they are powered - Running a command block minecart across a single powered activator rail at full speed will run its command thrice