//引入必要的库
import matplotlib.pyplot as plt
import numpy as np

//绘制一个简单的三维图表
# 创建数据
x = np.linspace(-5, 5, 100)
y = np.linspace(-5, 5, 100)
X, Y = np.meshgrid(x, y)
Z = np.sin(np.sqrt(X**2 + Y**2))
 
# 绘制图表
fig = plt.figure()
ax = fig.add_subplot(111, projection='3d')
ax.plot_surface(X, Y, Z)
ax.set_xlabel('x轴')
ax.set_ylabel('y轴')
ax.set_zlabel('z轴')
ax.set_title('三维图表示例')
plt.show()