C代码
// readme.txt
This directory contains a C implementation of the R-tree data structure.
The implementation is originally from the test code of the authors, and
later ported to ANSI C on a variety of platforms by Melinda Green
(melinda@superliminal.com).
c代码，不是c#的
应该可以用吧，不过菜鸟不会用，没解说。
C代码 // readme.txt This directory contains a C implementation of the R-tree data structure. The implementation is originally from the test code of the authors, and later ported to ANSI C on a variety of platforms by Melinda Green (melinda@superliminal.com).
不是C#代码