在matplotlib三维图上设置刻度

import matplotlib.pyplot as plt
from mpl_toolkits.mplot3d import Axes3D

fig = plt.figure()
ax = fig.add_subplot(111, projection='3d')

# 生成数据
x = [1, 2, 3, 4, 5]
y = [2, 4, 6, 8, 10]
z = [3, 6, 9, 12, 15]

# 绘制三维散点图
ax.scatter(x, y, z)

# 设置x轴刻度
ax.set_xticks([1, 3, 5])
ax.set_xticklabels(['A', 'B', 'C'])

# 设置y轴刻度
ax.set_yticks([2, 6, 10])
ax.set_yticklabels(['D', 'E', 'F'])

# 设置z轴刻度
ax.set_zticks([3, 9, 15])
ax.set_zticklabels(['G', 'H', 'I'])

plt.show()