怎么跨类调用啊啊啊啊

ip_sacaner/scan_run.cpp

@@ -0,0 +1,13 @@
+#include "scan_run.h"
+#include "widget.h"
+#include "ui_widget.h"
+#include <QDebug>
+
+
+
+void scan_run::run()
+{
+	//Widget::tray_scan();
+	//ui->outputlist->append("1");
+	//Widget::test();
+}