QChart和QChartView是数据可视化的控件，结合QSplineSeries制作了一条曲线。

注：数据来源:国家统计局

【资料图】

from PyQt5.QtGui import *

from PyQt5.QtCore import *

from PyQt5.QtWidgets import *

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

import sys

class PyQt534(QMainWindow):

def __init__(self):

super().__init__()

self.initUI()

def initUI(self):

self.setWindowTitle("chart")

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

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

12001.52, 22859.35, 24221.98, 20363.19, 15342.77]

chart = QChart()                                # 图表组件

spline = QSplineSeries()                        # 样条曲线

for i, value in enumerate(gdpData):

spline.append(i, value)

spline.setName("2018年部分城市GDP")

spline.setColor(Qt.blue)

chart.addSeries(spline)                         # 添加Series

chartView = QChartView()                        # 视图组件

chartView.setChart(chart)                       # 显示chart

self.setCentralWidget(chartView)

self.show()

if __name__ == '__main__':

app = QApplication(sys.argv)

window = PyQt534()

sys.exit(app.exec_())

执行结果

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