QT动态切换中英文Demo

#include "widget.h" #include "ui_widget.h" #include <QMessageBox> QTranslator *tor; Widget::Widget(QWidget *parent) : QWidget(parent), ui(new Ui::Widget) { ui->setupUi(this); /* 加载语言文件 默认中文 */ tor = new QTranslator(); tor->load(":/trans/zh.qm"); qApp->installTranslator(tor); updateUI(); } Widget::~Widget() { delete ui; } /* 更新UI */ void Widget::updateUI() { this->setWindowTitle(tr("主框架")); ui->groupBox->setTitle(tr("语言选择")); ui->pushButton->setText(tr("中文")); ui->pushButton_2->setText(tr("英文")); ui->pushButton_3->setText(tr("测试")); ui->label->setText(tr("中英文切换")); } void Widget::on_pushButton_3_clicked() { QMessageBox::information(this, "information", tr("动态切换中英文")); } /* 中文 */ void Widget::on_pushButton_clicked() { QApplication::removeTranslator(tor); tor->load(":/trans/zh.qm"); qApp->installTranslator(tor); updateUI(); } /* 英文 */ void Widget::on_pushButton_2_clicked() { QApplication::removeTranslator(tor); tor->load(":/trans/en.qm"); qApp->installTranslator(tor); updateUI(); }