QtCustomPlot正在绘制不同的时间，我传入的

QCustomPlot *customPlot = new QCustomPlot(this);

customPlot->plotLayout()->insertRow(0);
customPlot->plotLayout()->addElement(0, 0, new QCPTextElement(customPlot, "数据图表", QFont("sans", 12, QFont::Bold)));
customPlot->xAxis->setLabel("时间");
customPlot->yAxis->setLabel("数据");

QVector<double> time; // 存储时间数据
QVector<double> data; // 存储数据点

// 将数据传入二维数组中
QVector<QVector<double>> dataPoints;
dataPoints.append(time);
dataPoints.append(data);

// 绘制折线图
customPlot->addGraph();
customPlot->graph(0)->setData(time, data);
customPlot->graph(0)->setPen(QPen(Qt::blue)); // 设置折线的颜色
customPlot->xAxis->setRange(time.first(), time.last()); // 设置x轴范围
customPlot->yAxis->setRange(*std::min_element(data.constBegin(), data.constEnd()), *std::max_element(data.constBegin(), data.constEnd())); // 设置y轴范围
customPlot->replot(); // 更新图表

QTimer *timer = new QTimer(this);
connect(timer, &QTimer::timeout, this, [=]() {
    // 更新数据
    // ...
    // 更新图表
    customPlot->graph(0)->setData(time, data);
    customPlot->xAxis->setRange(time.first(), time.last());
    customPlot->yAxis->setRange(*std::min_element(data.constBegin(), data.constEnd()), *std::max_element(data.constBegin(), data.constEnd()));
    customPlot->replot();
});
timer->start(1000); // 每隔1秒更新一次图表