Qt加载qss文件

void loadStyleSheet(const QString &styleSheetFile)
{
	QFile file(styleSheetFile);
	file.open(QFile::ReadOnly);
	if (file.isOpen())
	{
		QString styleSheet = this->styleSheet();
		styleSheet += QLatin1String(file.readAll());//读取样式表文件
		this->setStyleSheet(styleSheet);//把文件内容传参
		file.close();
	}
	else
	{
		QMessageBox::information(this,"tip","cannot find qss file");
	}

}

构造函数里直接调用：loadStyleSheet("./Resources/style/blue.qss");