yunsuan_fig

代码说明：

  本程序1、2主要是实现简单运算器和除法器的功能，可与C语言等嵌套使用。程序3 实现多选菜单的功能。(1,2 This procedure is mainly to achieve a simple arithmetic unit and the division' s function can be nested with the C language, etc.. Procedures for three multi-function selection menu.)