Widget::Widget(QWidget *parent) : QWidget(parent), ui(new Ui::Widget) { ui->setupUi(this); setFixedSize(750, 500); // 窗口大小 ui->stackedWidget->setCurrentIndex(0); QSqlQueryModel *typeModel = new QSqlQueryModel(this); typeModel->setQuery("select name from type"); ui->sellTypeComboBox->setModel(typeModel); QSplitter *splitter = new QSplitter(ui->managePage); splitter->resize(700, 360); splitter->move(0, 50); splitter->addWidget(ui->toolBox); splitter->addWidget(ui->dailyList); splitter->setStretchFactor(0, 1); splitter->setStretchFactor(1, 1); on_sellCancelBtn_clicked(); showDailyList(); }