俄罗斯方块

代码说明：

资源描述package tetris; import java.awt.*; import java.awt.event.*; import javax.swing.*; import com.borland.jbcl.layout.*; /** * Title: * Description: * Copyright: Copyright (c) 2005 * Company: * @author not attributable * @version 1.0 */ public class MainFrame extends JFrame { JPanel contentPane;//窗体内容网格 JMenuBar jMenuBar1 = new JMenuBar();//菜单条 JMenu jMenu1 = new JMenu();//文件菜单 JMenu jMenu2 = new JMenu();//选项菜单 JMenu jMenu3 = new JMenu();//初始化水平菜单 JMenuItem jMenuItem1 = new JMenuItem();//游戏开始菜单项 JMenuItem jMenuItem2 = new JMenuItem();//游戏暂停菜单项 JMenuItem jMenuItem3 = new JMenuItem();//游戏退出菜单项 //10个初始级别设置菜单项 JRadioButtonMenuItem jRadioButtonMenuItem1 = new JRadioButtonMenuItem(); JRadioButtonMenuItem jRadioButtonMenuItem2 = new JRadioButtonMenuItem(); JRadioButtonMenuItem jRadioButtonMenuItem3 = new JRadio