一元多项式计算器的基本功能定为

(1) 建立多项式

(2) 输出多项式

(3) 两个多项式相加，建立并输出和多项式

(4) 两个多项式相减，建立并输出差多项式

实现提示：可选择带头结点的单向循环链表

或单链表存储多项式，头结点可存放多项式

的参数，如项数等。

除以上功能外，还有乘法和除法的计算和导数计算-Unary polynomial basic functions of the calculator as (1) the establishment of polynomials (2) output polynomial (3) The sum of two polynomials, create and output, and polynomial (4) two more Phase-cut, create and output to achieve differential polynomial Tip: choose to take the lead node of the one-way linked list or a single chain store polynomials, the first node can be stored polynomial parameters, such as the number of such items. In addition to these features, there are multiplication and division calculations and derivative calculation