如何在NetworkX中显示k-部图？

import networkx as nx
import matplotlib.pyplot as plt

G = nx.DiGraph()

# 添加节点
G.add_nodes_from(['A', 'B', 'C', 'D', 'E', 'F'])

# 添加边
G.add_edges_from([('A', 'B'), ('B', 'C'), ('C', 'A'), ('D', 'E'), ('E', 'F'), ('F', 'D')])

pos = nx.bipartite_layout(G, ['A', 'B', 'C'], align='horizontal')

# 绘制节点
nx.draw_networkx_nodes(G, pos, nodelist=['A', 'B', 'C'], node_color='r')
nx.draw_networkx_nodes(G, pos, nodelist=['D', 'E', 'F'], node_color='b')

# 绘制边
nx.draw_networkx_edges(G, pos)

# 绘制节点标签
nx.draw_networkx_labels(G, pos)

# 显示图形
plt.axis('off')
plt.show()