Spyder画3D柱形图只显示figure size 432*288 with 0Axe,却没有图片s

代码
import matplotlib.pyplot as plt
from mpl_toolkits.mplot3d.axes3d import Axes3D
import numpy as np
fig=plt.figure()
axes3d=Axes3D(fig)
zs = [1, 5, 10, 15, 20]
for z in zs:
x = np.arange(0, 10)
y = np.random.randint(0, 30, size=10)
axes3d.bar(x, y,zs=z, zdir='x', color=['r', 'green', 'yellow', 'c'])
结果
<Figure size 432x288 with 0 Axes>

import matplotlib.pyplot as plt
import numpy as np
fig=plt.figure()
axes3d= fig.add_subplot(111, projection='3d')
zs = [1, 5, 10, 15, 20]
for z in zs:
    x = np.arange(0, 10)
    y = np.random.randint(0, 30, size=10)
    axes3d.bar(x, y,zs=z, zdir='x', color=['r', 'green', 'yellow', 'c'])
    axes3d.set_xlabel('X Label')
    axes3d.set_ylabel('Y Label')
    axes3d.set_zlabel('Z Label')
plt.show()

代码没问题，最后加上一行就行：

plt.show()