对于使用C语言家族开发工具进行软件开发的技术人员来讲，头文件（后缀名为 .h 的文件）是再熟悉不过的了。头文件作为一种包含功能函数接口声明的一类文件，在C语言家族程序开发中被大量使用。-use of C language family of development tools for software development in terms of technical personnel, the first document (known as the suffix. H document) is very familiar to the people. The first document contains functions as a function of a statement Interface category, in the C programming language family which has been heavily used.