PyQt5+QtChart实现柱状图的绘制

柱状图分类

QBarSeries：竖向柱状图

QPercentBarSeries：竖向百分比柱状图

QStackedBarSeries：竖向堆叠柱状图

QHorizontalBarSeries：横向柱状图

QHorizontalPercentBarSeries：横向百分比柱状图

QHorizontalStackedBarSeries：横向堆叠柱状图

实现代码

import sys
from PyQt5.QtGui import *
from PyQt5.QtCore import *
from PyQt5.QtWidgets import *
from PyQt5.QtCore import Qt
from PyQt5.QtChart import QBarSet, QBarSeries, QChart, QChartView, QValueAxis, QBarCategoryAxis,\
         QBarLegendMarker, QVBarModelMapper, QHBarModelMapper, QHorizontalBarSeries,QPercentBarSeries, \
         QHorizontalPercentBarSeries, QHorizontalStackedBarSeries,QStackedBarSeries

class MyBarWindow(QWidget):
   def __init__(self, parent=None):
       super(MyBarWindow, self).__init__(parent)

chart = QChart()
       barSeries = QBarSeries()    # 竖向柱状图
       # barSeries = QPercentBarSeries()   # 竖向百分比柱状图
       # barSeries = QHorizontalBarSeries()    # 横向柱状图
       # barSeries = QHorizontalPercentBarSeries()   # 横向百分比柱状图
       # barSeries = QStackedBarSeries() # 竖向堆叠柱状图
       # barSeries = QHorizontalStackedBarSeries() # 横向堆叠柱状图

chartView = QChartView()
       valueAxisY = QValueAxis()
       barCategorAxisX = QBarCategoryAxis()

chart.setAnimationOptions(QChart.AllAnimations)
       chart.setAnimationEasingCurve(QEasingCurve.OutBack)

set0 = QBarSet("产品1")
       set1 = QBarSet("产品2")
       set2 = QBarSet("产品3")

set0.append(10.12345)
       set0.append(3.23)
       set0.append(7)

set1.append(5)
       set1.append(2)
       set1.append(9)

set2.append(9)
       set2.append(1)
       set2.append(7)

barSeries.append(set0)
       barSeries.append(set1)
       barSeries.append(set2)
       barSeries.setBarWidth(0.8)

barSeries.setLabelsVisible(True)
       barSeries.setLabelsAngle(75.0)
       barSeries.setLabelsPrecision(3)
       # barSeries.setLabelsFormat("")

barCategorAxisX.append(["一季度", "二季度", "三季度"])

valueAxisY.setRange(0, 10)

chart.setTitle("柱状图表")
       chart.setAxisX(barCategorAxisX)
       chart.setAxisY(valueAxisY)
       chart.addSeries(barSeries)

chartView.setChart(chart)

vbox = QVBoxLayout()
       vbox.addWidget(chartView)
       self.setLayout(vbox)

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

效果图

竖向柱状图

竖向百分比柱状图

竖向堆叠柱状图

横向柱状图

横向百分比柱状图

横向堆叠柱状图

来源：https://blog.csdn.net/songyulong8888/article/details/128329284