链表的经典应用,程序在多项式相加同类项合并还有小的瑕疵,有待改进. 代码如下: package 一元多项式计算器; public class PolyNode { private double a; private int i; PolyNode next; public PolyNode(double a,int i){ this.a=a; this.i=i; this.next=null; } public PolyNode(){ this(0,0); } public double get