说明：  java 二元一次方程计算器 方便大家计算二元一次方程，简单实现了GUI。。。以及备注详细的计算过程，希望大家喜欢
(java binary calculator一次方程to facilitate calculation of the dual一次方程, simple realization of the GUI. . . Remarks detailed calculations, as well as process, I hope you like)