1     ui->tableWidget->setColumnCount(3); 2     ui->tableWidget->verticalHeader()->hide(); 3     ui->tableWidget->horizontalHeader()->setSectionResizeMode(QHeaderView::Interactive); 4     ui->tableWidget->horizontalHeader()->setStretchLastSection(true);  // 最后一列伸缩铺满 5     ui->tableWidget->setHorizontalHeaderLabels(QStringList() 6                                                       << tr("Device IP") << tr("EP Address")  << tr("Type")); 7     ui->tableWidget->setColumnWidth(0, 200); 8     ui->tableWidget->setColumnWidth(1, 400); 9     ui->tableWidget->setSelectionBehavior(QAbstractItemView::SelectRows);10     ui->tableWidget->setSelectionMode(QAbstractItemView::SingleSelection);11     ui->tableWidget->setEditTriggers(QAbstractItemView::NoEditTriggers);