PyQtGraph绘制折线图

from PyQt5.QtWidgets import *
import pyqtgraph as pg
import sys


class MainWindow(QWidget):

    def __init__(self):
        super().__init__()

        self.setWindowTitle('pyqtgraph作图示例')

        # 创建 PlotWidget 对象
        self.pw = pg.PlotWidget()

        # 设置图表标题
        self.pw.setTitle("气温趋势",color='#008080',size='12pt')

        # 设置上下左右的label
        self.pw.setLabel("left","气温(摄氏度)")
        self.pw.setLabel("bottom","时间")
        # 背景色改为白色
        self.pw.setBackground('w')


        hour = [1,2,3,4,5,6,7,8,9,10]
        temperature = [30,32,34,32,33,31,29,32,35,45]

        # hour 和 temperature 分别是 : x, y 轴上的值
        self.pw.plot(hour,
                     temperature,
                     pen=pg.mkPen('b') # 线条颜色
                    )

        # 创建其他Qt控件
        okButton = QPushButton("OK")
        lineEdit = QLineEdit('点击信息')
        # 水平layout里面放 edit 和 button
        hbox = QHBoxLayout()
        hbox.addWidget(lineEdit)
        hbox.addWidget(okButton)

        # 垂直layout里面放 pyqtgraph图表控件 和 前面的水平layout
        vbox = QVBoxLayout()
        vbox.addWidget(self.pw)
        vbox.addLayout(hbox)

        # 设置全局layout
        self.setLayout(vbox)


if __name__ == '__main__':
    app = QApplication(sys.argv)
    main = MainWindow()
    main.show()
    app.exec_()