转载：Qt4 Gossip: QGridLayout 版面配置

向QGridLayout中添加部件时，addWidget有三个参数，分别是部件指针、行号、列号。

http://caterpillar.onlyfun.net/Gossip/Qt4Gossip/QGridLayout.html

亮点：

QGridLayout *layout = new QGridLayout;

layout->setSpacing(2);

layout->setMargin(2);

for(int i = 0, k = 0; i < 3; i++, k = k + 3) {

for(int j = 0; j < 3; j++) {

QLabel *label = new QLabel(texts[k + j]);

label->setFrameStyle(QFrame::Panel + QFrame::Sunken);

label->setMinimumSize(55, 0);

label->setAlignment(Qt::AlignCenter);

layout->addWidget(label, i, j);

}

}