java 俄罗斯方块

java 俄罗斯方块 小程序 import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.JFrame; import javax.swing.JMenu; import javax.swing.JMenuBar; import javax.swing.JMenuItem; import java.awt.Graphics; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.KeyEvent; import java.awt.event.KeyListener; import javax.swing.JOptionPane; import javax.swing.JPanel; import javax.swing.Timer; public Tetris() { final Tetrisblok a = new Tetrisblok(); addKeyListener(a); add(a); JMenuBar menu = new JMenuBar(); this.setJMenuBar(menu); JMenu game = new JMenu("游戏"); JMenuItem newgame = game.add("新游戏"); newgame.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { a.initTerisblok(); } });