比较漂亮的实例 #include "iconhelper.h" IconHelper* IconHelper::_instance = 0; IconHelper::IconHelper(QObject*): QObject(qApp) { int fontId = QFontDatabase::addApplicationFont(":/image/fontawesome-webfont.ttf"); QString fontName = QFontDatabase::applicationFontFamilies(fontId).at(0); iconFont = QFont(fontName); } void IconHelper::SetIcon(QLabel* lab, QChar c, int size) { iconFont.setPointSize(size); lab->setFont(iconFont); lab->setText(c); } void IconHelper::SetIcon(QPushButton* btn, QChar c, int size) { iconFont.setPointSize(size); btn->setFont(iconFont); btn->setText(c); }