在matplotlib中更改填充颜色

import matplotlib.pyplot as plt

# 数据
x = ['A', 'B', 'C', 'D']
y = [3, 7, 2, 5]

# 创建柱状图
plt.bar(x, y, color=['red', 'green', 'blue', 'yellow'])

# 显示图表
plt.show()

import matplotlib.pyplot as plt

# 数据
labels = ['A', 'B', 'C', 'D']
sizes = [15, 30, 45, 10]
colors = ['gold', 'yellowgreen', 'lightcoral', 'lightskyblue']

# 创建饼图
plt.pie(sizes, labels=labels, colors=colors, autopct='%1.1f%%', startangle=140)

# 显示图表
plt.show()

import matplotlib.pyplot as plt
import numpy as np

# 数据
x = np.linspace(0, 10, 100)
y1 = np.sin(x)
y2 = np.cos(x)

# 创建填充区域图
plt.fill_between(x, y1, y2, color='skyblue', alpha=0.5)

# 显示图表
plt.show()

# 示例：调整透明度
plt.fill_between(x, y1, y2, color='skyblue', alpha=0.8)