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   源码介绍

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qt程序

 

MainWindow::MainWindow(QWidget *parent)

 : QMainWindow(parent)

 , ui(new Ui::MainWindow)

{

 ui->setupUi(this);

 QString str = QStringLiteral("1你好世界 abc"); //推荐

 qDebug()<<str;

 this->fileName = "D:\\qt_workspace\\wave_csv\\m.csv";

 this->fileName22 = "E:\\QT\\qcptest2\\sincos.csv";

 //曲线控件1

 //设置曲线名称1

 QCPTextElement *plotTitle = new QCPTextElement(ui->customplot);

 plotTitle->setText(QStringLiteral("单条曲线"));

 plotTitle->setFont(QFont("宋体", 16, QFont::Bold));

 ui->customplot->plotLayout()->insertRow(0);

 ui->customplot->plotLayout()->addElement(0, 0, plotTitle);

 ui->customplot->setInteractions(QCP::iRangeDrag | QCP::iRangeZoom | QCP::iSelectPlottables);

 ui->customplot->addGraph();

 ui->customplot->graph(0)->setName("value");

 ui->customplot->xAxis->setLabel(QStringLiteral("X轴"));

 ui->customplot->yAxis->setLabel(QStringLiteral("Y轴"));

 //曲线控件2

 //设置曲线名称1

 QCPTextElement *plotTitle2 = new QCPTextElement(ui->customplot2);

 plotTitle2->setText(QStringLiteral("两条曲线"));

 plotTitle2->setFont(QFont("宋体", 16, QFont::Bold));

 ui->customplot2->plotLayout()->insertRow(0);

 ui->customplot2->plotLayout()->addElement(0, 0, plotTitle2);

 ui->customplot2->setInteractions(QCP::iRangeDrag | QCP::iRangeZoom | QCP::iSelectPlottables);

 ui->customplot2->legend->setVisible(true);

 ui->customplot2->legend->setFont(QFont("Helvetica",9));

 // add two new graphs and set their look:

 ui->customplot2->addGraph();

 ui->customplot2->graph(0)->setPen(QPen(Qt::blue)); // line color blue for first graph

 ui->customplot2->graph(0)->setName("ps1");

 ui->customplot2->addGraph();

 ui->customplot2->graph(1)->setPen(QPen(Qt::red)); // line color red for second graph

 ui->customplot2->graph(1)->setName("ps2");

 ui->customplot2->xAxis->setLabel(QStringLiteral("X轴"));

 ui->customplot2->yAxis->setLabel(QStringLiteral("Y轴"));

}