import?javax.swing.Jframe;
import?javax.swing.JPanel;
import?javax.swing.JLabel;
import?javax.swing.JTextField;
import?javax.swing.JButton;
import?java.awt.event.ActionListener;
import?java.awt.event.ActionEvent;
public?class?TestComputer?extends?Jframe?implements?ActionListener{
?private?JTextField?op1;
?private?JTextField?op2;
?private?JTextField?result;
?private?JButton?add;
?private?JButton?del;
?private?JButton?mul;
?private?JButton?mod;
?public?TestComputer（）?{
???
??setBounds（200?200?400?300）;
??setResizable（false）;
??getContentPane（）.setLayout（null）;
???
??JPanel?panel?=?new?JPanel（）;
??panel.setBounds（33?25?176?215）;
??getContentPane（）.add（panel）;
??panel.setLayout（null）;
???
??JLabel?label?=?new?JLabel（“\u64CD\u4F5C\u65701“）;
??label.setBounds（1