锁链头盔指令

/give @p minecraft:chainmail_helmet

/give @a minecraft:chainmail_helmet

/give @p chainmail_helmet[custom_name={translate:"item.minecraft.chainmail_helmet",color:"gold",italic:false}]

想换成自己起的名字，把 translate 那段改成普通文字

/give @p chainmail_helmet[enchantments={protection:4,unbreaking:3,mending:1}]

/give @p chainmail_helmet[unbreakable={}]

/item replace entity @p armor.head with minecraft:chainmail_helmet

/clear @p minecraft:chainmail_helmet

/execute as @a if items entity @s weapon.mainhand minecraft:chainmail_helmet run title @s actionbar ["",{text:"✔ ",color:"green"},{translate:"item.minecraft.chainmail_helmet"}]