import matplotlib.pyplot as plt

import pandas as pd

import numpy as np

myData = pd.DataFrame({

'A': [5, 8, 15, 22, 25, 26],

'B': [25, 22, 20, 18, 20, 23],

'C': [11, np.nan, 18, np.nan, 17, 15]})

print("【显示】myData:")

print(myData)

print("【执行】myData.plot.area:")

myData.plot.area(stacked=False)

plt.show()