c语言中常用的函数库，主要描述各个库中所使用的函数及相关参数说明。-c language commonly used in libraries, mainly used in the descr iption of the various library functions and related parameters descr iption.

常用的函数库，可以很方便的查询到常用的函数，用于初学者-matlab common function library, you can easily check to commonly used functions, for beginners

关于《C语言库函数速查手册》，介绍常用的C语言库函数。-About " C language library functions Check manual" describes the commonly used C language library functions.