可以完成多项式的加法，在程序中输入一个多项式，将其与另一多项式相加，结果输出两多项式相加的结果-Can complete polynomial addition, the program enter a polynomial, the sum of its with another polynomial, the resulting output result of the sum of two polynomials

实现一元多项式的乘法与加法，满足人们在运算中对多项式运算的需求-Achieve one yuan polynomial multiplication and addition, to meet the demand for polynomial operations In operation