Matplotlib图像演示

创建一个简单的图。

import matplotlib

import matplotlib.pyplot as plt

import numpy as np

# Data for plotting

t = np.arange(0.0, 2.0, 0.01)

s = 1 + np.sin(2 * np.pi * t)

fig, ax = plt.subplots()

ax.plot(t, s)

ax.set(xlabel='time (s)', ylabel='voltage (mV)',

title='About as simple as it gets, folks')

ax.grid()

fig.savefig("test.png")

plt.show()