~~~ package draw.a2; import java.awt.*; import javax.swing.*; public class Test extends JFrame { Wdmb2 mb=null; public static void main(String[] args) { Test lx=new Test(); } public Test() { mb=new Wdmb2(); this.add(mb); this.setSize(600,550); this.setLocation(300,280); this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); this.setVisible(true); } } class Wdmb2 extends JPanel { public void paint(Graphics g) { //Image tp=Toolkit.getDefaultToolkit().getImage(Panel.class.getResource("/test.jpg")); //g.drawImage(tp,100,80,400,350,this);//前面两个数字是坐标，后面两个数字是长宽 //绘图用到的图片要拷贝在src目录下 g.setColor(Color.red); g.setFont(new Font("幼圆",Font.BOLD,50)); g.drawString("同学们，大家好",200,100); } } ~~~