7. 系统提示词（可直接用作第一版）
归根结底，精耕细作、潜心培育，“小而美”文旅业态，一定能实现业态兴、村民富、乡村美，让乡村既有流量，更有“留量”。
。业内人士推荐下载安装 谷歌浏览器 开启极速安全的 上网之旅。作为进阶阅读
第 1 周：定义输入/输出标准与红线
A quadtree does the same thing for two-dimensional space. It takes a rectangular region and divides it into four equal quadrants: northwest, northeast, southwest, southeast. If a quadrant has too many points in it, it subdivides again and again. Each subdivision creates smaller and smaller cells where points are densely packed.