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//添加曲线
ui->widget->addGraph();
ui->widget->graph(0)->setPen(QPen(Qt::blue));
ui->widget->xAxis->setTickLabelType(QCPAxis::ltDateTime);
ui->widget->xAxis->setDateTimeFormat("HH");
ui->widget->xAxis->setAutoTickStep(false);
ui->widget->xAxis->setTickStep(3600);
ui->widget->xAxis->setSubTickCount(4);
ui->widget->graph(0)->setData(x,y);
ui->widget->xAxis->setLabel("Time");
ui->widget->yAxis->setLabel("Temp");
ui->widget->xAxis->setRange(0,23*3600+59*60+59);
ui->widget->yAxis->setRange(0,50);
ui->widget->replot();
这个程序为什么是从08::00开始的 |
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