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As seen in: CSDN
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Articles by QVector lines

Qt与电脑管家4_kaixin_learn_qt_ing的博客-CSDN博客

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By QPen pen, QFont font, font.setPoint Size, QVector lines
| CSDN
#ifndef LINE_CHART_H #define LINE_CHART_H #include <QWidget> #include <QPainter> #include "circle.h" class line_chart : public QWidget { Q_OBJECT public: explicit line_chart(QWidget *parent = nullptr); protected: void paintEvent(QPaintEvent *event) override; private: QVector<int> h; int max,min,sum; signals: }; #endif // LINE_CHART_H #include "line_chart.h" #include <QDebug> line_chart::line_chart(QWidget *parent) : QWidget(parent) { sum=0; for(int i=0;i<30;i++) { if(i%5==0)h<<i; else{ h<<0;...
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