修正大量demo

screenwidget/frmscreenwidget.h

@@ -0,0 +1,25 @@
+#ifndef FRMSCREENWIDGET_H
+#define FRMSCREENWIDGET_H
+
+#include <QWidget>
+
+namespace Ui {
+class frmScreenWidget;
+}
+
+class frmScreenWidget : public QWidget
+{
+    Q_OBJECT
+
+public:
+    explicit frmScreenWidget(QWidget *parent = 0);
+    ~frmScreenWidget();
+
+private slots:
+    void on_pushButton_clicked();
+
+private:
+    Ui::frmScreenWidget *ui;
+};
+
+#endif // FRMSCREENWIDGET_H