使用PySide6的QtCharts模块制作三种常见统计图表的方法

import sys
from PySide6.QtWidgets import QApplication, QMainWindow
from PySide6.QtCharts import QChart, QChartView, QPieSeries
from PySide6.QtGui import QPainter

class PieChartWindow(QMainWindow):
    def __init__(self):
        super().__init__()
        self.setWindowTitle("PySide6 饼图示例")
        self.resize(600, 400)

        # 1. 创建饼图系列
        series = QPieSeries()
        series.append("Python", 45)
        series.append("C++", 25)
        series.append("JavaScript", 20)
        series.append("Go", 10)

        # 可选：设置某一块突出显示
        slice_obj = series.slices()[0]
        slice_obj.setExploded()
        slice_obj.setLabelVisible(True)

        # 2. 创建图表并添加系列
        chart = QChart()
        chart.addSeries(series)
        chart.setTitle("编程语言使用占比")
        chart.legend().setVisible(True)

        # 3. 创建视图
        chart_view = QChartView(chart)
        chart_view.setRenderHint(QPainter.RenderHint.Antialiasing)

        self.setCentralWidget(chart_view)

if __name__ == "__main__":
    app = QApplication(sys.argv)
    window = PieChartWindow()
    window.show()
    sys.exit(app.exec())

import sys
from PySide6.QtWidgets import QApplication, QMainWindow
from PySide6.QtCharts import (
    QChart, QChartView, QBarSeries, QBarSet,
    QBarCategoryAxis, QValueAxis
)
from PySide6.QtGui import QPainter, Qt

class BarChartWindow(QMainWindow):
    def __init__(self):
        super().__init__()
        self.setWindowTitle("PySide6 条形图示例")
        self.resize(700, 450)

        # 1. 定义数据
        set1 = QBarSet("2023年")
        set2 = QBarSet("2024年")
        set1.append([10, 20, 30, 40])
        set2.append([15, 25, 35, 45])

        # 2. 创建条形图系列
        series = QBarSeries()
        series.append(set1)
        series.append(set2)

        # 3. 创建图表
        chart = QChart()
        chart.addSeries(series)
        chart.setTitle("季度销售额对比")
        chart.setAnimationOptions(QChart.AnimationOption.SeriesAnimations)

        # 4. 配置 X 轴（类别）
        categories = ["Q1", "Q2", "Q3", "Q4"]
        axis_x = QBarCategoryAxis()
        axis_x.append(categories)
        chart.addAxis(axis_x, Qt.AlignmentFlag.AlignBottom)
        series.attachAxis(axis_x)

        # 5. 配置 Y 轴（数值）
        axis_y = QValueAxis()
        axis_y.setTitleText("销售额 (万元)")
        chart.addAxis(axis_y, Qt.AlignmentFlag.AlignLeft)
        series.attachAxis(axis_y)

        chart.legend().setVisible(True)

        # 6. 创建视图
        chart_view = QChartView(chart)
        chart_view.setRenderHint(QPainter.RenderHint.Antialiasing)
        self.setCentralWidget(chart_view)

if __name__ == "__main__":
    app = QApplication(sys.argv)
    window = BarChartWindow()
    window.show()
    sys.exit(app.exec())

import sys
from PySide6.QtWidgets import QApplication, QMainWindow
from PySide6.QtCharts import QChart, QChartView, QLineSeries, QValueAxis
from PySide6.QtGui import QPainter
from PySide6.QtCore import Qt

class LineChartWindow(QMainWindow):
    def __init__(self):
        super().__init__()
        self.setWindowTitle("PySide6 折线图示例")
        self.resize(700, 450)

        # 1. 创建折线系列
        series = QLineSeries()
        series.setName("用户增长")
        series.append(0, 100)
        series.append(1, 150)
        series.append(2, 180)
        series.append(3, 250)
        series.append(4, 320)
        series.append(5, 400)

        # 2. 创建图表
        chart = QChart()
        chart.addSeries(series)
        chart.setTitle("月度用户增长趋势")
        chart.setAnimationOptions(QChart.AnimationOption.SeriesAnimations)

        # 3. 配置坐标轴
        axis_x = QValueAxis()
        axis_x.setTitleText("月份")
        axis_x.setRange(0, 5)
        chart.addAxis(axis_x, Qt.AlignmentFlag.AlignBottom)
        series.attachAxis(axis_x)

        axis_y = QValueAxis()
        axis_y.setTitleText("用户数")
        axis_y.setRange(0, 500)
        chart.addAxis(axis_y, Qt.AlignmentFlag.AlignLeft)
        series.attachAxis(axis_y)

        chart.legend().setVisible(True)

        # 4. 创建视图
        chart_view = QChartView(chart)
        chart_view.setRenderHint(QPainter.RenderHint.Antialiasing)
        self.setCentralWidget(chart_view)

if __name__ == "__main__":
    app = QApplication(sys.argv)
    window = LineChartWindow()
    window.show()
    sys.exit(app.exec())