中缀表达式转后缀表达式(C++版本)，这里转化能便于对表达式计算处理-Infix expression turn postfix expression (C++ version), where transformation can facilitate the expression evaluates to handle

中缀转后缀的C++语言实现形式，方便大家直接运算-Infix turn suffix C++ language forms to facilitate direct operation

后缀转中缀的表达式，一样可以用的，需要的可以拿去-Suffix turn infix expression can be used as needed may take