重绘总结
重绘 利用自定义队列存储所画的图；import java.awt.FlowLayout;import java.awt.Graphics;import java.awt.event.ActionListener;import javax.swing.JButton;import javax.swing.JFrame;public class FrameTest extends JFrame {private ListDiy listDiy = new ListDiy();private Graphics graphics;public void paint(Graphics g) {super.paint(g);int x1;int x2;int y1;int y2;String type;for(int i = 0; i