摘要：
private JButton getOpenButton() { if (openButton == null) { openButton = new JButton(); openButton.setText("写入文件"); // 修改按钮的提示信息 openButton.addActionL 阅读全文
摘要：
private JButton getOpenButton() {if (openButton == null) {openButton = new JButton();openButton.setText("写... 阅读全文