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import javax.swing.*;public class SimpleGuil{public static void main(String [] args){JFrame frame=new JFrame();MyDrawPanel my=new MyDrawPanel();frame.getContentPane().add(my);//JButton button=new JButton();frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);//这一行程序会在window关闭时候把程序结束掉//frame.getContentPane().add(button);//frame.setSize(300,300);frame.setVisible(true);}}

import java.awt.*;import javax.swing.*;public class MyDrawPanel extends JPanel{public void paintComponent(Graphics g){Image image=new ImageIcon("1.jpg").getImage();//图文件名g.drawImage(image,3,4,this);//这个坐标代表团左上方的位置距离panel的左方边缘3个像素，距离顶端向下4个像素}}