一个德国人Kasper Peeters用C++ template写的tree的STL实现，并和STL其他容器vector，map一样，提供标准STL接口，供用户调用。非常有参考价值，说明文档参见tree.pdf。-a German Kasper Peeters C template to write the tree S TL realized, and other containers and STL vector, map, providing standard STL interface, Calling for users. Very valuable reference documentation See tree.pdf.