如何用SciPy绘制三维曲线？

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

# 创建数据
t = np.linspace(0, 2*np.pi, 100)
x = np.sin(t)
y = np.cos(t)
z = t

# 创建三维图形对象
fig = plt.figure()
ax = fig.add_subplot(111, projection='3d')

# 绘制三维曲线
ax.plot(x, y, z)

# 设置坐标轴标签
ax.set_xlabel('X')
ax.set_ylabel('Y')
ax.set_zlabel('Z')

# 显示图形
plt.show()