up：远端不存在目录校验功能测试完毕。

Gui/Control/Common.cpp

@@ -0,0 +1,24 @@
+#include "Common.h"
+
+#include <QMessageBox>
+
+Common::Common() : QWidget(nullptr)
+{
+}
+
+int Common::GetAcceptThree(QWidget* parent, const QString& notice, const QString& title)
+{
+    QMessageBox msgBox(parent);
+    msgBox.setWindowTitle(notice);
+    msgBox.setText(title);
+    msgBox.setStandardButtons(QMessageBox::Yes | QMessageBox::YesToAll | QMessageBox::Cancel);
+    int result = msgBox.exec();
+    switch (result) {
+    case QMessageBox::Yes:
+        return 0;
+    case QMessageBox::YesToAll:
+        return 1;
+    default:
+        return -1;
+    }
+}