C++实现的R树算法，包括构造，查找，增删改更新结点等。还有两个test文件。

C++实现的R树算法，包括构造，查找，增删改更新结点等。还有两个test文件。-C++ Achieved R tree algorithm, including the structure, find, additions and deletions and other changes to update nodes. There are two test files.