摘要：
1 package LoginDemo; 2 3 import java.awt.event.KeyEvent; 4 import java.awt.event.KeyListener; 5 import java.awt.event.WindowEvent; 6 import java.awt.event.WindowAdapter; 7 import javax.swing.JFrame; 8 import javax.swing.JScrollPane; 9 import javax.swing.JTextArea;10 11 class MyKeyHandle extends JF.. 阅读全文