matplotlib 简单柱状图示例

# coding: utf-8
import matplotlib.pyplot as plt

plt.rcParams['font.sans-serif'] = ['SimHei']
plt.rcParams['axes.unicode_minus'] = False

# 数据
labels = ['A', 'B', 'C', 'D']
values = [10, 20, 15, 25]

# 绘制柱状图
plt.bar(labels, values)
plt.title('柱状图示例')
plt.xlabel('类别')
plt.ylabel('数值')

plt.show()