将Python列表逐行写入csv文件

你需要将每一行拆分为一个平面列表。

import csv

my_list = [
    [[1.75], [4.75]],
    [[2.5], [2.5]],
    [[3.5], [3.5]],
    [[4.0], [4.0]],
    ]

with open("my.csv", "w") as f:
    writer = csv.writer(f)

    for row in my_list:
        writer.writerow([l[0] for l in row])

或者,如果愿意 for 循环可以用生成器表达式替换,以便您可以使用 writerows 正如您目前所做的那样:

    writer.writerows([l[0] for l in row] for row in my_list)

以下是一个可能的解决方案:

import csv

lst = [[[1.75], [4.75]],
       [[2.5], [2.5]],
       [[3.5], [3.5]],
       [[4.0], [4.0]]]

with open('file.csv', 'w') as f:
    writer = csv.writer(f)
    w.writerows([[x[0] for x in lst] for line in lst])

或者,您可以使用 itertools.chain :

from itertools import chain
...
w.writerows([list(chain(*line)) for line in lst])