优化输出信息
可以改一下输出信息，show item message可以这么改（例子）
$\text{\color{gray}{Tester} \color{dark}{is holding} [Diamond Sword]}$
show entity
$\text{\color{gray}{Tester} \color{dark}{is looking at} [Zombie]}$
show block
$\text{\color{gray}{Tester} \color{dark}{is looking at} [Grass]}$
show item armor
/show-item armor hemlet|chestplate|legging|boots
或
/show-item armor h|c|l|b
$\text{\color{gray}{Tester} \color{dark}{is wearing} [Diamond Chestplate]}$
Show stat
/show-stat
展示你所有的属性（如health,armor,...)
$\text{\color{gray}{Tester} \color{dark}{'s stat:} }$
$\text{xxx.xxx.xxx : xxx}$
...
