问题描述：
java这个super语句什么意思
protected void paintComponent(Graphics g)
{
super.paintComponent(g);
g.drawLine(0,0,50,50);
}
protected void paintComponent(Graphics g)
{
super.paintComponent(g);
g.drawLine(0,0,50,50);
}
问题解答：
我来补答展开全文阅读