#include "mainwindow.h" #include "ui_mainwindow.h" MainWindow::MainWindow(QWidget *parent) : QWidget(parent) , ui(new Ui::MainWindow) { ui->setupUi(this); // auto setLabelText = [](QLabel *label, const QString &text){ label->setWordWrap(true); label->setAlignment(Qt::AlignTop); label->setText(text.split("", QString::SkipEmptyParts).join("\n")); }; setLabelText(ui->label_1, tr("Welcome to China")); setLabelText(ui->label_2, tr("Hello world")); setLabelText(ui->label_3, tr("Good good study")); } MainWindow::~MainWindow() { delete ui; }