project-manager/api/app/facade/Salary.php

<?php

namespace app\facade;

use think\Facade;

/**
 * 表达式操作类
 * @method evaluate(string $expression) static
 */
class Salary extends Facade
{
    protected static function getFacadeClass(): string
    {
        return 'app\common\util\Salary';
    }
}