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package cn.nukkit.command;

/**
 * 能监听命令执行的类实现的接口。
* An interface what can be implemented by classes which listens command executing. * * @author MagicDroidX(code) @ Nukkit Project * @author 粉鞋大妈(javadoc) @ Nukkit Project * @see cn.nukkit.plugin.PluginBase * @see cn.nukkit.command.CommandExecutor#onCommand * @since Nukkit 1.0 | Nukkit API 1.0.0 */ public interface CommandExecutor { /** * 在命令执行时会调用的方法。
* Called when a command is executed. * *

一个命令可以是{@code /a_LABEL an_arg1 AN_ARG2...}的形式,这时{@code label}变量的值为{@code "a_label"}, * {@code args}数组的元素有{@code "an_arg1","AN_ARG2",...}。注意到{@code label}变量会被转化成小写, * 而{@code args}数组内字符串元素的大小写不变。
* A command can be such a form like {@code /a_LABEL an_arg1 AN_ARG2...}. At this time, the value of * variable {@code label} is {@code "a_label"}, and the values of elements of array {@code args} are * {@code "an_arg1","AN_ARG2",...}. Notice that the value of variable {@code label} will be converted to * lower case, but the cases of elements of array {@code args} won't change.

* *

关于返回值,如果返回{@code false},Nukkit会给sender发送这个命令的使用方法等信息,来表示这个命令没有使用成功。 * 如果你的命令成功的发挥了作用,你应该返回{@code true}来表示这个命令已执行成功。
* If this function returns {@code false}, Nukkit will send command usages to command sender, to explain that * the command didn't work normally. If your command works properly, a {@code true} should be returned to explain * that the command works.

* *

如果你想测试一个命令发送者是否有权限执行这个命令, * 可以使用{@link cn.nukkit.command.Command#testPermissionSilent}。
* If you want to test whether a command sender has the permission to execute a command, * you can use {@link cn.nukkit.command.Command#testPermissionSilent}.

* * @param sender 这个命令的发送者,可以是玩家或控制台等。
* The sender of this command, this can be a player or a console. * @param command 要被发送的命令。
* The command to send. * @param label 这个命令的标签。
* Label of the command. * @param args 这个命令的参数列表。
* Arguments of this command. * @return 这个命令执行是否执行成功。
whether this command is executed successfully. * @since Nukkit 1.0 | Nukkit API 1.0.0 */ boolean onCommand(CommandSender sender, Command command, String label, String[] args); }




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