#encoding:utf8

import pandas as pd

import numpy as np

import matplotlib.pyplot as plt

df = pd.DataFrame(np.random.randn(10,4),index=pd.date_range('2018/12/18',

   periods=10), columns=list('ABCD'))

plt.figure()

df.plot()

df = pd.DataFrame(3 * np.random.rand(4), index=['a', 'b', 'c', 'd'], columns=['x'])

df.plot.pie(subplots=True)

plt.show()

#或者

#encoding:utf8

import pandas as pd

import numpy as np

from pylab import *

df = pd.DataFrame(np.random.randn(10,4),index=pd.date_range('2018/12/18',

   periods=10), columns=list('ABCD'))

df.plot()

df = pd.DataFrame(3 * np.random.rand(4), index=['a', 'b', 'c', 'd'], columns=['x'])

df.plot.pie(subplots=True)

show()