Boost库是一个可移植、提供源代码的C++库，作为标准库的后备，是C++标准化进程的发动机之一。 Boost库由C++标准委员会库工作组成员发起，其中有些内容有望成为下一代C++标准库内容。在C++社区中影响甚大，是不折不扣的“准”标准库。-Boost library is a portable, providing the source code of C++ library, the library as a standard backup, is the C++ standardization process of the engine. Boost C++ standard library from the library working group initiated by the Commission, some of the content is expected to become the next generation of C++ standard library contents. In C++ a great impact in the community, is truly a " quasi"　standard library.