《Java课程实习》日志（周四）

<img src="https://img-blog.csdn.net/20150702105641520?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvdTAxMzg5OTc3MA==/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center" alt="" />

<img src="https://img-blog.csdn.net/20150702105939049?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvdTAxMzg5OTc3MA==/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center" alt="" />

//点击再猜一次可随机显示3张图片

<span style="font-family: Arial, Helvetica, sans-serif;">final JButton btnGuessAgain = new JButton("\u518D\u731C\u4E00\u6B21");</span>

        btnGuessAgain.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent e) {if(e.getSource()==btnGuessAgain ){ //如果是next按钮String strTmp = fileArray[index].toString();index++;if(index==NUM_IMG)index = 0;jlbImg1.setIcon(new ImageIcon(strTmp));index++;jlbImg2.setIcon(new ImageIcon(strTmp));index++;if(e.getSource()==btnGuessAgain ){ //如果是next按钮String strTmp2 = fileArray[index].toString();index++;jlbImg2.setIcon(new ImageIcon(strTmp2));index++;}}   String strTmp1 = fileArray[index].toString();index++;jlbImg3.setIcon(new ImageIcon(strTmp1));}});btnGuessAgain.setBounds(223, 337, 93, 23);contentPane.add(btnGuessAgain);}}