为什么

var a,b,c
Player.addItemCreativeInv(280,1,0)
function useItem(x,y,z,itemid,blockid,side,itemdamage,blockdamage){
if(itemid==259&&blockid==46){
preventDefault()
clientMessage("§4#警告#§5他妈的还不快跑！")
a=x,b=y,c=z
}
if(itemid==280){
explode(a,b,c,1000)
clientMessage("爆炸！")
}
}

var a,b,c
Player.addItemCreativeInv(280,1,0)
function useItem(x,y,z,itemid,blockid,side,itemdamage,blockdamage){
if(itemid==259&&blockid==46){
preventDefault()
clientMessage("§4#警告#§5他妈的还不快跑！")
a=x,b=y,c=z
}
if(itemid==280){
explode(a,b,c,1000)
clientMessage("爆炸！")
}
}