Python作业画矢量图

import networkx as nx
import matplotlib.pyplot as plt
import numpy as np

G = nx.Graph()
Matrix = np.array(
    [
        [None, 7, 5, 1, None, None],  # a
        [7, None, None, 5, 3, None],  # b
        [5, None, None, 6, None, 2],  # c
        [1, 5, 6, None, 3, 4],  # d
        [None, 3, None, 3, None, 3],  # e
        [None, None, 2, 4, 3, None],
          # f
    ]
)
for i in range(len(Matrix)):
    for j in range(len(Matrix)):
        G.add_edge(i, j)

nx.draw(G)
plt.show()