Python-如何从.csv文件读取到二叉树？

Question

我有一个文件，包含由逗号分隔的五列，即，

g,1,2,3,4 
c,4,2,6,8
d,5,6,8,9

我希望将这个文件读入字典，例如第1列是键，第2-4列是整数值，即，

d = {"g":[1, 2, 3, 4], "c":[4, 2, 6, 8], ...etc}

我一直在玩我在互联网上找到的代码片段，但是它返回了一个ValueError:太多的值无法打开(预期的2)

d = {}
with open("file.csv") as f:
    for line in f:
       (key, val) = line.split(",")
       d[key] = int(val)

Answer 1

你快到了。尝尝这个。我认为它是相当可读的。

d = {}
with open("file.csv") as f:
    for line in f:
       data = line.split(",")
       key = data[0]
       val = [int(x) for x in data[1:]]
       d[key] = val

Answer 2

尝尝这个

import pandas as pd
 
df = pd.read_csv("file.csv")
dct = df.to_dict()

Answer 3

有点像

data = {}
with open('data.txt') as f:
  lines = [l.strip() for l in f]
  for line in lines:
    fields = line.split(',')
    data[fields[0]] = [int(x) for x in fields[1:]]
print(data)

输出

{'g': [1, 2, 3, 4], 'c': [4, 2, 6, 8], 'd': [5, 6, 8, 9]}