Qt入门－表格类QTableWidget

    表格是GUI中常用的控件，在Qt中，常用的表格类是QTableWidget。

    示例：

		QTableWidget *table = new QTableWidget(4,2);  //新建一4行2列的表格

		
		//设置表格行标题
		QStringList headerLabels;
		headerLabels << "C1" << "C2";
		table->setHorizontalHeaderLabels(headerLabels);
		
		
		//设置表格行标题的对齐方式
		table->horizontalHeader()->setDefaultAlignment(Qt::AlignLeft);
		
		//设置行表题
		QStringList rowLabels;
		rowLabels << "Line1" << "Line2" << "Line3" << "Line4";
		table->setVerticalHeaderLabels(rowLabels);


		//设置每一行的高度
		for(int i = 0; i < 4; i++)
			table->setRowHeight(i, 22);

		//自动调整最后一列的宽度使它和表格的右边界对齐
		table->horizontalHeader()->setStretchLastSection(true);

		//设置表格的选择方式
		table->setSelectionBehavior(QAbstractItemView::SelectItems);

		//设置编辑方式
		table->setEditTriggers(QAbstractItemView::DoubleClicked);

		//设置表格的内容
		for (int row = 0; row < 4; ++row) 
		{
			QTableWidgetItem *item0, *item1;
			item0 = new QTableWidgetItem;
			item1 = new QTableWidgetItem;

			QString txt = QString("%1").arg(row + 1);
			item0->setText(txt);
			table->setItem(row, 0, item0);
			
			txt = QString("%1").arg((row + 1) * 2);
			item1->setText(txt);
			table->setItem(row, 1, item1);
			
		}
		
		//增加一行
		table->setRowCount(5);
		QTableWidgetItem *vHeader5 = new QTableWidgetItem("Line5");
		table->setVerticalHeaderItem(4, vHeader5);

		QTableWidgetItem *item5_0, *item5_1;
		item5_0 = new QTableWidgetItem;
		item5_1 = new QTableWidgetItem;
		item5_0->setText(QString("%1").arg(5));
		item5_1->setText(QString("%1").arg(5 * 2));
		table->setItem(4, 0, item5_0);
		table->setItem(4, 1, item5_1);

界面中的表格如图：