help.java

俄罗斯方块功能

package src;

import javax.microedition.lcdui.*;

public class Help extends Alert implements CommandListener{
    private Command Exit=new Command("返回",Command.EXIT,5);
    private Displayable upinstance;
    public Help(Displayable instance){
        super("游戏说明");
        this.upinstance=instance;
        this.setString("上键为变形，下键为直落"+"\n"+"Email:[e-mail]"+"\n"+"QQ:30468903");
        this.setTimeout(Alert.FOREVER);
        this.addCommand(Exit);
        this.setCommandListener(this);
    }

    public void commandAction(Command c,Displayable d){
        if(c==Exit){
            Display.getDisplay(BlockMidlet.instance).setCurrent(upinstance);
        }
    }
}