python - 下面的程序没有输出，也没有错误

Question

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

y=[229500,273300,247000,195100,261000,179700,168500,234400,168800,180400,156200,288350,186750,202100,256800]
x = [1850,2190,2100,1930,2300,1710,1550,1920,1840,1720,1660,2405,1525,2030,2240]
z = [4,5,4,3,4,2,2,4,2,2,2,5,3,2,4]

fig = plt.figure(figsize=(10,7))
ax = plt.axes(projection = "3d")

ax.scatter3D(x,y,z, color = "Green",marker = 'o');
ax.set_xlabel("House Price (INR)")
ax.set_ylabel("Area (Sq. ft)")
ax.set_zlabel("No. of Rooms")

plt.show()

上面的程序没有输出。为此，我一直在使用 Google Colab。有人可以指出我在这里犯下的错误或错误吗？这个新手将不胜感激您的帮助。谢谢你

标签： pythonpython-3.xmatplotlibdata-scienceaxes