qt creator 응답없음

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textedit에 작성한 텍스트를 txt파일로 저장하는 코드입니다.근데 저장하다가 응답없음이 뜨고 꺼져버리는데 왜이러는건가요?도와주세요..void MainWindow::on_actionsave_triggered() { QString fileName &#61; QFileDialog::getSaveFileName(this, tr(&#34;Save file&#34;), &#34;&#34;, tr(&#34;hanu file (*.txt);;All Files (*)&#34;)); QFile file(fileName); if (!file.open(QIODevice::WriteOnly | QIODevice::Text)) return; if (fileName !&#61; &#34;&#34;) { QFile file(fileName); if (!file.open(QIODevice::WriteOnly)) { QMessageBox::about(this,&#34;error&#34;,&#34;this&#34;); } else { QTextStream stream(&file); stream << textEdit->toPlainText(); stream.flush(); file.close(); } } }

qt creator 응답없음

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