你可以把刚才给我的代码用代码格式再发一遍吗

当然可以，下面是完整的代码，包括将经过的边的编号写入Excel的部分：

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

df = pd.read_excel(r"C:\Users\li'yi'jie\Desktop\运筹学网络规划数据.xlsx") 

edges = [] 
for i in range(len(df)): 
    edge = { "id": df.loc[i, "边的编号"], 
             "tail": df.loc[i, "边的尾节点"], 
             "head": df.loc[i, "边的头节点"], 
             "length": df.loc[i, "长度"], 
             "capacity": df.loc[i, "容量"] } 
    edges.append(edge) 

plt.figure(figsize=(15,15)) 

G = nx.DiGraph() 

for edge in edges: 
    G.add_edge(edge["tail"], edge["head"], weight=edge["length"], id=edge["id"]) 

all_pairs = dict(nx.all_pairs_dijkstra_path(G, weight='weight')) 

rows = [] 
for start_node, dist_dict in all_pairs.items(): 
    for end_node, path in dist_dict.items(): 
        path_edges = []
        for i in range(len(path)-1):
            edge_id = G[path[i]][path[i+1]]['id']
            path_edges.append(edge_id)
        rows.append({'起始节点': start_node, '终止节点': end_node, '最短路径长度': dist_dict[end_node], '经过的边': path_edges}) 

df_result = pd.DataFrame(rows) 
df_result.to_excel('all_pairs.xlsx', index=False)