程序：
package line;
import java.awt.Graphics;
import javax.swing.JPanel;
public class D001 extends JPanel {
public void pain(Graphics g){
g.drawLine(70, 50, 180, 50);
g.drawLine(70, 80, 180, 80);
g.drawLine(110, 10, 140, 120);
}
public static void main(String[] args) {
D001 dr=new D001();
Graphics g=dr.getGraphics();
dr.pain(g);
}
}
这个程序是不对啊。。。没法运行啊I
package line;
import java.awt.Graphics;
import javax.swing.JPanel;
public class D001 extends JPanel {
public void pain(Graphics g){
g.drawLine(70, 50, 180, 50);
g.drawLine(70, 80, 180, 80);
g.drawLine(110, 10, 140, 120);
}
public static void main(String[] args) {
D001 dr=new D001();
Graphics g=dr.getGraphics();
dr.pain(g);
}
}
这个程序是不对啊。。。没法运行啊I
