pyqt5中，在控件上画柱状图

首先将控件升级，详情参考：
将控件升级方法
并将控件改名
下面将在这个控件上画柱状图

import sys

from PyQt5.QtCore import Qt
from PyQt5.QtWidgets import QApplication, QMainWindow
from PyQt5.QtChart import (QChart, QChartView, QBarSeries, QBarSet, QBarCategoryAxis, QValueAxis)
from QtCharts import Ui_MainWindow


class Window(QMainWindow, Ui_MainWindow):
    def __init__(self, app):
        super(QMainWindow, self).__init__()
        self.app = app
        self.setup_ui()  # 渲染画布

    def setup_ui(self):
        self.setupUi(self)  # 调用Ui_MainWindow的setupUi渲染界面
        chart = QChart()
        self.setting()
        self.plot_view.setChart(chart)

        chart.addSeries(self.series)
        chart.setTitle("参数指标xxx")

        axisY = QValueAxis()
        axisY.applyNiceNumbers()  # 调整Y轴范围，使可用显示所有数据，便于观看
        chart.addAxis(axisY, Qt.AlignLeft)
        self.series.attachAxis(axisY)  # 数据与坐标轴绑定

        self.axis_x = QBarCategoryAxis()  # 将类别添加到图表的轴
        daysofweek = '算法对比'
        self.axis_x.append(daysofweek)
        chart.addAxis(self.axis_x, Qt.AlignBottom)
        self.series.attachAxis(self.axis_x)

    def setting(self):
        cols = ['算法1', '算法2', '算法3']
        data = [53, 24, 85]

        self.series = QBarSeries()  # 将一系列数据显示为按类别分组的垂直条形图
        for i in range(len(cols)):
            setTemp = QBarSet(cols[i])  # QBarSet 类表示条形图中的一组条形
            temp = data[i]  # 柱状图的数值
            setTemp.append(temp)
            self.series.append(setTemp)


if __name__ == "__main__":
    app = QApplication(sys.argv)
    mywindow = Window(app)
    mywindow.show()
    sys.exit(app.exec_())

这个是简单的一组数据，也可以画多组数据
详情请参考：
多组柱状图