代码:

1. /give @s minecraft:command_block

代码:

1. /summon armor_stand

代码:

1. /scoreboard objectives add time dummy 计算时间

代码:

1. /scoreboard objectives add time2 dummy 计时器

代码:

1. /scoreboard objectives setdisplay sidebar time2

代码:

1. /scoreboard players add @e[name=time] time 1

代码:

1. /execute @e[name=time,scores={time=20}] ~ ~ ~ /scoreboard players add 时间 1

代码:

1. /scoreboard players set @e[name=time] time 0