As with crypto-currency, records of who owns what are stored on a ledger that is maintained by thousands of computers around the world. These records can’t be forged because the whole system operates on an open-source network.
Police officers from Bangkok’s metropolitan bureau had less than 24 hours to prepare for their latest undercover operation. They would be starring as performers of a lion dance at a temple fair held for the lunar new year. Their mission: track down and arrest a suspected thief who had a history of evading officers.
，更多细节参见heLLoword翻译官方下载
int mid = left + (right - left) / 2; // 防止溢出的中点计算。服务器推荐对此有专业解读
camera.position.z = 40：这一步很关键！默认情况下，物体在坐标原点 (0,0,0)，相机也在原点。如果你不移开相机，你就跟物体“贴脸”了，什么也看不见。我们把相机往后拉 40 米，就能看清全貌了。
That looks something like this for a small grid where our snake is moving down. Notice that we delete and re-print 3 entire lines!