[QT] how to obtain the number of rows and columns of qtableview and qtablewidget

1、 get QTableView The number of rows and columns

ui->tableView->model()->rowCount();			// Row number 
ui->tableView->model()->columnCount();		// Number of columns 

2、QTableWidget Gets the number of rows and columns

ui->tableWidget->rowCount();				// Row number 
ui->tableWidget->columnCount();				// Number of columns