ui->tableWidget->horizontalHeader()->setSectionResizeMode(QHeaderView::Stretch);//表头根据内容扩展
ui->tableWidget->setEditTriggers(QAbstractItemView::NoEditTriggers);//不可编辑
ui->tableWidget->setSelectionBehavior(QAbstractItemView::SelectRows);//整行选定
ui->tableWidget->setSelectionMode(QAbstractItemView::SingleSelection);//不可选定多行
ui->tableWidget->setShowGrid(false);//是否显示网格
ui->tableWidget->setAlternatingRowColors(true);//行色交替显示