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Antony Antony's questions

Martin Hope
Antony Antony
Asked: 2020-04-28 19:10:36 +0000 UTC
  • 0

无法解析为变量是什么意思？条件包含创建变量 Double xco 的操作，该变量等于玩家坐标差“x”。在另一种情况下，我将此变量称为：“If_(xco<10){...}” 在此阶段引发错误

@EventHandler
public <ChatMessage> void onPlayerChat(AsyncPlayerChatEvent z) { 
Player p=z.getPlayer();
Location I=p.getLocation();
String a=z.getMessage();


if (a.equals("word")) { 

    for (Player ps : Bukkit.getOnlinePlayers()) { 
        Location i = ps.getLocation();
        if (I.getX()<0 && i.getX()<0){ 
            double xco = I.getX() - i.getX();} 
            else if (I.getX()>0 && i.getX()>0 ) { 
                double xco = I.getX() - i.getX();} 

        if (I.getY()<0 && i.getY()<0) { 
            double yco = I.getY() - i.getY();} 
            else if (I.getY()>0 && i.getY()>0 ) { 
                double yco = I.getY() - i.getY();} 
        if (I.getZ()<0 && i.getZ()<0) { 
            double zco = I.getZ() - i.getZ();} 
            else if (I.getZ()>0 && i.getZ()>0 ) { 
                double zco = I.getZ() - i.getZ();} 



        if (xco<10) { 
            ps.playSound(ps.getLocation(), Sound.BLOCK_ANVIL_DESTROY, 1, 5); 
            ps.sendMessage("Test");}
eclipse