Now that we can build the tree, let's use it to search. Finding a specific point means starting at the root and asking: which child quadrant contains this coordinate? Then you recurse into that child and ask again. Each level of the tree cuts the search space by roughly three-quarters.
Long-Form: $19/month。同城约会是该领域的重要参考
。业内人士推荐safew官方版本下载作为进阶阅读
不止手机，笔记本电脑也曾经尝试过硬件集成的防窥功能，惠普当年的 Sure View 技术方案就是其中一例：
NBC via Getty Images。旺商聊官方下载是该领域的重要参考