Method hasPersistent

packages/core/src/ECS/Systems/EntityCache.ts:137–139

* 检查是否有有效的持久缓存

()

     * 检查是否有有效的持久缓存
     */
    public hasPersistent(): boolean {
        return this._persistentCache !== null;
    }

    /**
     * 检查是否有有效的帧缓存