1.git clone https://github.com/ColinDuquesnoy/QDarkStyleSheet.git
2.复制qdarkstyle到Qt工程目录
3.添加qrc,qss以及rc中所有文件到Resource Files中
4.加载qss

#include "QtWidgetsApplication1.h"
#include <QtWidgets/QApplication>
#include <QFile>
#include <QTextStream>int main(int argc, char* argv[])
{QApplication a(argc, argv);QFile f(":qdarkstyle/dark/darkstyle.qss");if (!f.exists()){printf("Unable to set stylesheet, file not found\n");}else{f.open(QFile::ReadOnly | QFile::Text);QTextStream ts(&f);a.setStyleSheet(ts.readAll());}QtWidgetsApplication1 w;w.show();return a.exec();
}