本实验的目的就是设计一个表达式求值的程序，程序中能接受包含（，），+，-，*，/， ，^的中缀表达式，从文件中读取算术表达式，并求出算术表达式的结果，在另一文件里输出-The purpose of this study is to design an expression evaluation process, the program can accept include (,),+,-,*,/, ,^ the infix expressions, arithmetic expressions read from a file, and Find the result of arithmetic expression, the output in another file