说明：  功能： 完成两个n元多项式作乘法，给出明确的等式形式。 分步实施：初步完成总体设计，搭好框架，确定人机对话的界面，确定函数个数； 完成最低要求：建立一个文件，实现两个一元二次多项式作乘法。 进一步要求：实现三元二次多项式的乘法。有兴趣的同学可以自己扩充系统功能。 要求：1）界面友好，函数功能要划分好 2）总体设计应画一流程图 3）程序要加必要的注释 4）要提供程序测试方案 5）程序一定要经得起测试，宁可功能少一些，也要能运行起来，不能运行的程序是没有价值的。
(Function: the completion of two n-polynomial for multiplication, the equation gives a clear form. Step by step: the initial completion of the overall design, setting up the framework to determine the man-machine interface dialogue, to determine the number of functions Complete the minimum requirements: create a file, to achieve two quadratic polynomial for multiplication. Further requirements: to achieve quadratic polynomial multiplication. Interested students can expand their system functions. Requirements: 1) friendly interface, function by function to be good 2) The overall design should draw a flowchart 3) program to add the necessary comments 4) To provide procedures for testing program 5) The program must stand the test, rather less features, but also can be up and running, can not run the program is of no value. )