SpeedPro CEO Paul Brewster says demand for the company’s services has remained strong, with the system now at 130 studios and $115 million in annual sales.
const time = (target - pos) / sp;
，更多细节参见爱思助手下载最新版本
* @param n 数组长度，更多细节参见Line官方版本下载
+__init__(config: Config)