k--; // 剩余删除名额减1（关键：控制删除位数，保证保留足够长度）
By 1996, the concept had crystallized into a franchise model. SpeedPro specializes in large-format printing, creating wall, window and floor graphics, event displays, digital displays and signs. In less than five years, Gran opened 30 Canadian locations, each run by an owner betting not just on print, but on the idea that better visibility could change a business’s trajectory.
，更多细节参见WPS下载最新地址
children born on or after 1 January 2025 will be offered two doses, one at 12 months and one at 18 months
* - this.arr：存储每日股票价格（按调用next的顺序）