如何使用matplotlib绘制不同长度的熊猫序列？

import pandas as pd
import matplotlib.pyplot as plt

panda_lengths = [10, 15, 8, 12, 20]

x_labels = ['Panda 1', 'Panda 2', 'Panda 3', 'Panda 4', 'Panda 5']

fig, ax = plt.subplots()

ax.bar(x_labels, panda_lengths)

ax.set_title('Panda Lengths')
ax.set_xlabel('Panda')
ax.set_ylabel('Length')

plt.show()