这是使用Java在二维空间里模拟直线的代码，里面有三个类，分别表示线、点、数。你需要配合其它程序才行运行，因此没有截图-This is the use of Java in the simulation of two-dimensional linear space of the code, there are three categories, and that line, point, a few. You need to do with other programs running, th