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將橫縱坐標設置為QBarCategoryAxis，使得GDP數(shù)據(jù)與城市名對應。

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from PyQt5.QtGui import *

from PyQt5.QtCore import *

from PyQt5.QtWidgets import *

from PyQt5.QtChart import QSplineSeries, QLineSeries, QChart, QChartView, QValueAxis, QBarCategoryAxis

from math import ceil

import sys

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class PyQt536(QMainWindow):

??? def __init__(self):

??????? super().__init__()

??????? self.initUI()

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??? def initUI(self):

??????? self.setWindowTitle("chart")

??????? self.resize(600, 400)?????????????????????????? # 設置窗口大小

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??????? cityName = ['北京', '天津', '上海', '南京', '杭州', '青島', '廣州', '深圳', '重慶', '成都']

??????? gdpData? = [30319.98, 18809.64, 32679.87, 12820.4, 13509.15,

??????????????????? 12001.52, 22859.35, 24221.98, 20363.19, 15342.77]

??????? MaxGDP = ceil(max(gdpData)/9)*10

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??????? chart = QChart()??????????????????????????????? # 圖表組件

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??????? spline = QSplineSeries()??????????????????????? # 樣條曲線

??????? for i, value in enumerate(gdpData):

??????????? spline.append(i, value)

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??????? spline.setName("2018年部分城市GDP")

??????? spline.setColor(Qt.blue)

???????????????

??????? chart.addSeries(spline)???????????????????????? # 添加Series

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??????? axis_x = QBarCategoryAxis()???????????????????? # 柱狀圖坐標

??????? axis_x.append(cityName)

??????? axis_x.setTitleText("城市")

??????? chart.addAxis(axis_x, Qt.AlignBottom)

??????? spline.attachAxis(axis_x)

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??????? axis_y = QValueAxis()

??????? axis_y.setLabelFormat("%d")

??????? axis_y.setRange(0, MaxGDP)

??????? axis_y.setTitleText("億元")

??????? chart.addAxis(axis_y, Qt.AlignLeft)

??????? spline.attachAxis(axis_y)

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??????? chartView = QChartView()??????????????????????? # 視圖組件

??????? chartView.setChart(chart)?????????????????????? # 顯示chart

???????

??????? self.setCentralWidget(chartView)

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??????? self.show()

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if __name__ == '__main__':

??? app = QApplication(sys.argv)

??? window = PyQt536()

??? sys.exit(app.exec())

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執(zhí)行結果