Python -如何标记附加轴/颜色栏

import matplotlib.pyplot as plt

# 创建主轴
fig, ax = plt.subplots()

# 绘制主轴数据
x = [1, 2, 3, 4, 5]
y = [10, 20, 30, 40, 50]
ax.plot(x, y, label='Main Axis')

# 创建附加x轴
ax2 = ax.twiny()

# 绘制附加x轴数据
x2 = [2, 4, 6, 8, 10]
y2 = [15, 25, 35, 45, 55]
ax2.plot(x2, y2, label='Additional X Axis')

# 设置图例
ax.legend(loc='upper left')
ax2.legend(loc='upper right')

# 显示图表
plt.show()

import matplotlib.pyplot as plt
import numpy as np

# 创建数据
x = np.linspace(0, 10, 100)
y = np.sin(x)

# 绘制散点图，并根据y值设置颜色
plt.scatter(x, y, c=y, cmap='viridis')

# 添加颜色栏
plt.colorbar()

# 显示图表
plt.show()