import matplotlib.pyplot as plt
import pandas as pd
import numpy as np

df = pd.DataFrame(np.random.random(size=(2, 5)))
df.plot()
plt.show() # 显示


import matplotlib.pyplot as plt
import pandas as pd
import numpy as np

df = pd.DataFrame(np.random.random(size=(2, 5)))
fig = df.plot()
fig.figure.savefig('pic.png') # 保存