Question

用代码实现动态画线效果,最好是跟java相关的代码，急急急在线等

可以用写代码的任何软件，用代码实现动态效果，从一个点然后动态画出一条线，带轨迹的直线，然后到达一个坐标后分叉成2个不同方向继续画线，然后2个不同方向的画线再继续分叉，以此类推，做到4个分支就可以了。这个过程都是动态的，并且分叉画的2个线是同步画的~没有代码的话希望能提供思路给我，在线等急急急急，谢谢

Answer 1

import java.awt.Graphics;
import java.awt.Color;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import javax.swing.JFrame;

public class PainterDemo2 extends JFrame{
    public PainterDemo2(){
        super("Java画图程序");
        setSize(600,500);  //设置窗口尺寸
        setVisible(true);  //设置窗口为可视
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);  //关闭窗口时退出程序
        addMouseListener(new MouseAdapter(){
            public void mouseClicked(MouseEvent e){
                PainterDemo2.this.repaint();
            }
        });
    }
    public void paint(Graphics g){
        super.paint(g);
        int x1=150, y1=150;
        int x2=151, y2=151;
        g.setColor(Color.red);
        for(int i=0; i<10; i++){
            g.drawLine(x1, y1, x2, y2);
            try{Thread.sleep(100);}catch(Exception eex){}
            x1=x2;
            y1=y2;
            x2=y2+10;
            y2=y2+10;
        }
        
        int x211=x1,    y211=y1;
        int x212=x1+1,  y212=y1+1;
        int x221=x1,    y221=y1;
        int x222=x1+1,  y222=y1+1;
        for(int i=10; i<20; i++){
            g.drawLine(x211, y211, x212, y212);
            g.drawLine(x221, y221, x222, y222);
            try{Thread.sleep(100);}catch(Exception eex){}
            x211=x212;
            y211=y212;
            x212=x212-10;
            y212=y212+10;
            
            x221=x222;
            y221=y222;
            x222=x222+10;
            y222=y222-10;
        }
        
        int x311=x211,    y311=y211;
        int x312=x211+1,  y312=y211+1;
        
        int x321=x211,    y321=y211;
        int x322=x211+1,  y322=y211+1;
        
        int x331=x221,    y331=y221;
        int x332=x221+1,  y332=y221+1;
        
        int x341=x221,    y341=y221;
        int x342=x221+1,  y342=y221+1;
        for(int i=10; i<20; i++){
            g.drawLine(x311, y311, x312, y312);
            g.drawLine(x321, y321, x322, y322);
            
            g.drawLine(x331, y331, x332, y332);
            g.drawLine(x341, y341, x342, y342);
            
            try{Thread.sleep(100);}catch(Exception eex){}
            x311=x312;
            y311=y312;
            x312=x312-10;
            y312=y312-10;
            
            x321=x322;
            y321=y322;
            x322=x322+10;
            y322=y322+10;
            
            x331=x332;
            y331=y332;
            x332=x332-10;
            y332=y332-10;
            
            x341=x342;
            y341=y342;
            x342=x342+10;
            y342=y342+10;
        }
    }
    
    public static void main(String[] args){
        new PainterDemo2();
    }
}