longwoo1012的博客

ui_->qwtPlot_0->setAxisTitle(QwtPlot::yLeft, "f0"); //设置坐标轴的范围 ui_->qwtPlot_0->setAxisAutoScale(QwtPlot::xBottom, true); ui_->qwtPlot_0->setAxisAutoScale(QwtPlot::yLeft, true); //设置右边标注 ui_->qwtPlot_0->insertLegend(new QwtLegend().

举个例子 CMAKE_MINIMUM_REQUIRED(VERSION 3.0) PROJECT (QTTEST) #SET(CMAKE_BUILD_TYPE Release) SET(CMAKE_BUILD_TYPE Debug) #SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Os -std=c++14 -fPIC -Wreturn-type -Wmaybe-uninitialized")# -Wreorder -Wdelete-non-virtual-dtor