关于多项式计算的程序，包括一维多项式的求职和二维多项式以及复系数多项式相乘-Regarding the procedures for calculating the polynomial

本程序可实现多项式乘法，可以输入多项式各项的指数和系数，还可以确定多项式的项数，多项式乘法-This program can achieve polynomial multiplication, you can enter the index and the coefficients of polynomial items, you can also determine the number of terms in the polynomial, polynomial multiplicatio