/不多说，直接可以拷贝下面的东西，就可以运行。package day04;import java.awt.*;import java.awt.event.*;import javax.swing.*; import java.applet.*;import java.lang.String.*;import java.lang.*;import java.io.*;public class ERSBlock extends JPanel implements ActionListener,KeyListener/应该是继承JPanelstatic Button but = new Button6;static Button noStop = new Button(取 消 暂 停);static Label scoreLab = new Label(分数:);static Label infoLab = new Label(提示:);static Label speedLab = new Label
