自定义简单语法类C语言编译器，具备识别C语言基本语句功能，并生成四元式-Since the definition of simple types of C language syntax compiler, a statement to identify the basic functions of C language and generate quaternion type

compiler generation exp

codegen.py编译算式并在pyc文件下生成bycode。pyc可以直接在终端运行，输入算式得到结果。-A compiler for equation.