怎么解决网页跳出的“无法获取未定义或null引用的属性item”

2025-04-27 16:04:28
推荐回答(1个)
回答1:

g.drawString(time, 100, 100);
try {
Thread.sleep(1000);
} catch (InterruptedException e) { }
repaint();
}
}