用两个文件存储两个多项式的系数，用两个栈来表示这两个多项式，实现多项式的加、减、乘、除四种基本运算，再把结果输入到一个文件中。-Two files are stored with the coefficients of two polynomials, with two stacks to represent these two polynomials to achieve polynomial addition, subtraction, multiplication, division four basic operations, then the result into a file in.