如何根据用户在Python中的输入绘制3D正方形？

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

def draw_3d_square():
    fig = plt.figure()
    ax = fig.add_subplot(111, projection='3d')

    # 获取用户输入的边长
    side_length = float(input("请输入正方形的边长："))

    # 定义正方形的顶点坐标
    vertices = [
        [0, 0, 0],
        [0, side_length, 0],
        [side_length, side_length, 0],
        [side_length, 0, 0],
        [0, 0, side_length],
        [0, side_length, side_length],
        [side_length, side_length, side_length],
        [side_length, 0, side_length]
    ]

    # 定义正方形的边
    edges = [
        [vertices[0], vertices[1]],
        [vertices[1], vertices[2]],
        [vertices[2], vertices[3]],
        [vertices[3], vertices[0]],
        [vertices[4], vertices[5]],
        [vertices[5], vertices[6]],
        [vertices[6], vertices[7]],
        [vertices[7], vertices[4]],
        [vertices[0], vertices[4]],
        [vertices[1], vertices[5]],
        [vertices[2], vertices[6]],
        [vertices[3], vertices[7]]
    ]

    # 绘制正方形的边
    for edge in edges:
        ax.plot3D([edge[0][0], edge[1][0]],
                  [edge[0][1], edge[1][1]],
                  [edge[0][2], edge[1][2]])

    # 设置坐标轴范围
    ax.set_xlim([0, side_length])
    ax.set_ylim([0, side_length])
    ax.set_zlim([0, side_length])

    # 显示图形
    plt.show()

draw_3d_square()