编译后有个默认的空的QToolBar应该怎么删除
如图

C/C++ code

void TextEditer::createToolBars(){    fileToolBar = addToolBar(tr("File"));    fileToolBar->addAction(newAct);    fileToolBar->addAction(openAct);    fileToolBar->addAction(saveAct);    editToolBar = addToolBar(tr("Edit"));    editToolBar->addAction(cutAct);    editToolBar->addAction(copyAct);    editToolBar->addAction(pasteAct);}