pyqtgraph--用PlotWidget绘制图形

 

import pyqtgraph as pg
import numpy as np

app = pg.QtGui.QApplication([])
pw = pg.PlotWidget(title="绘图")  #创建一个绘图控件
pw.resize(600, 300)
data = np.random.random(size=50)
pw.plot(data)  #在绘图控件中绘制图形

pw.show()  #显示绘图控件
app.exec_()