基础条形图

运行图示：

代码如下：

# 条形图：.barh(y, width, height=0.8, left=None, *, align='center', **kwargs)

import matplotlib.pyplot as plt

import numpy as np

size = 5

x = np.arange(size)

a = np.random.random(size)

b = np.random.random(size)

c = np.random.random(size)

# ================条形图===============

plt.barh(x, a, height=0.4)

plt.show()