while(j<31 && !(h=free_table[j])) ++j;
Content Scramble System (CSS) — Wikipedia。heLLoword翻译官方下载对此有专业解读
。Line官方版本下载对此有专业解读
做一款属于自己的游戏的念头，就在这样的空虚时刻悄然萌芽。可她毫无编程、策划经验，一时之间无从下手，直到一场偶然的聚会，结识了当时还在实习的在读学生竹炭。，详情可参考51吃瓜
// First, we acquire a reader that gives an exclusive lock
One reason for routinely launching GPS satellites is simply "constellation replenishment," said Col. Andrew Menschner, deputy commander of the Space Force's Space Systems Command. Old satellites degrade and die, and new ones need to go up and replace them. At least 24 GPS satellites are needed for global coverage, and having additional satellites in the fleet can improve navigation precision. Today, there are 31 GPS satellites in operational service, flying more than 12,000 miles (20,000 kilometers) above the Earth.