If you design your functions to fully consume their arguments then you simply reference (ref)
I’ve also seen a number of influential folks and organizations promote the use of PRF for encrypting data.
。快连下载安装对此有专业解读
* @param arr 待排序数组
卖得最好的仍是山姆和胖东来。南方周末记者贾梦雅｜摄