理工科出生的学生一定不会不熟悉李萨如图形，本程序就是要绘制李萨如图形，给定两个坐标上的频率值，自动生成相应图形-Born science and engineering students are not familiar with will not Lissajous graphics, this program is to draw Lissajous graphics, the two coordinates of a given frequency value, automatically