纯C语言编写的手机销售系统，控制台程序，北京邮电学院长沙分院的刘位编写的。用纯C能写出这个小程序，很佩服作者，为大家提供了这么一个学习范例代码，希望研究C的朋友好好研究一番。-Pure C language prepared by the mobile sales system console program, Beijing University of Posts and Telecommunications, Changsha branch of the Liu-bit write. Pure C can write this small program, very much admired author, as we provide such a learning sample code, in the hope of C' s friends conscientiously study.