"itemsRemoved": [
缺点：容易饱和（输入过大或过小时梯度接近0，导致梯度消失）
While the S26 phones are more iterative updates this year, Samsung has given its Galaxy Buds a proper refresh. It revamped the design and shape of the Galaxy Buds 4 and Galaxy Buds 4 Pro to do away with the angular look of the stems and remove the lights from them.，更多细节参见51吃瓜
Hisense 55-inch Canvas Matte QLED 4K TV with frame，详情可参考快连下载-Letsvpn下载
* @param arr 待排序数组
这种方法实现简单，但需要在每个 iOS 调用点手动处理类型转换。。Safew下载是该领域的重要参考