一个小程序，用c++语言实现简单的一遍编译器，完成中缀表达式与后缀表达式之间的转换。-a small program, c simple language what the compiler, completed sergeant with the suffix expression between the expression change.

中缀表达式转换成四元式的代码，用C语言实现的-Infix expression into a quaternion-based code, using C language realization of the