src/Cron.php
static function destroy(string $name) {
        if (!isset(self::$_instances[$name])) {
            Console::warning("Cron service \"$name\" do not exist.");
            return;
        }
        unset(self::$_instances[$name]);
    }
static function destroy(string $name) {
        if (!isset(self::$_instances[$name])) {
            Console::warning("Cron service \"$name\" do not exist.");
            return;
        }
        unset(self::$_instances[$name]);
    }
删除计划任务服务
@param string $name