本文叙述了GMP大数库的帮助文档，详细介绍了GMP大数库的各种运算-This paper describes the documentation for GMP library of large numbers, details of the GMP library' s various operations of large numbers

用于实现RSA的大数库并继承了大数的幂模运算、四则运算等算法。-For the realization of large numbers of RSA libraries and inherited large numbers modulo exponentiation, four computing algorithms.