添加图标

mainwindow.cpp

@@ -8,8 +8,8 @@ MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent),
     setMenuBar(menuBar);
     setStatusBar(statusbar);
 
-    aboutQtAct = new QAction(tr("&关于Qt"), this);
-    aboutAct = new QAction(tr("&关于SerialAsst"), this);
+    aboutQtAct = new QAction(QIcon(":/pic/icon/qt-icon.png"), tr("&关于Qt"), this);
+    aboutAct = new QAction(QIcon(":/pic/icon/about.png"), tr("&关于SerialAsst"), this);
     helpMenu = menuBar->addMenu(tr("&帮助"));
     helpMenu->addAction(aboutQtAct);
     helpMenu->addAction(aboutAct);

resource.qrc

@@ -1,5 +1,7 @@
 <RCC>
     <qresource prefix="/pic">
         <file>icon/icon.png</file>
+        <file>icon/qt-icon.png</file>
+        <file>icon/about.png</file>
     </qresource>
 </RCC>