src/Console.php
static function register(string $name, callable $callback) {
        if (isset(self::$callbacks[$name]))
            self::warning("Overwriting console callback \"$name\".");
        self::$callbacks[$name] = $callback;
    }
static function register(string $name, callable $callback) {
        if (isset(self::$callbacks[$name]))
            self::warning("Overwriting console callback \"$name\".");
        self::$callbacks[$name] = $callback;
    }
注册控制台函数

@param string $name
@param callable $callback