坦克大战第一阶段代码

package tanke.game;

import javax.swing.*;
import java.awt.*;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.util.Vector;

//为了监听键盘事件，实现keylistener
public class mypanel extends JPanel implements KeyListener {
    mytanke mytanke = null;
//定义敌人坦克放入到vector集合中
    Vector  enemytanks=new Vector<>();
    int enemytanksize=3;
    public mypanel() {
        mytanke = new mytanke(100, 100);
        //c初始化敌人坦克
        for(int i=0;i