我知道了,就是用JPanel
JPanel buttonPanel = new JPanel(new FlowLayout());
buttonPanel.setBorder(BorderFactory.createTitledBorder("Edit")); //设置边框
buttonPanel.add(new JButton("button1"));
JPanel buttonPanel = new JPanel(new FlowLayout());
buttonPanel.setBorder(BorderFactory.createTitledBorder("Edit")); //设置边框
buttonPanel.add(new JButton("button1"));
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