列表的分隔符列表

Question

我有一个列表列表，需要将分隔符更改为 '|':

my_list_of_lists = [['1001100', 'xxx', '', '1100', 'PAR_200', '21651947694', '0', '0', '20210301', '20210331', '1630,51', '1', ''],
['1001110', 'sss', '', '1110', 'C-200', '20210307', '1630,51', '1', '7252048000136', ''],
['1001115', 'ddd', '', '1115', '21', '', 'NO6520058050362', '0', '08', '110433', '1630,51', '1', '', ''],
['1001120', 'fff', '', '1120', 'MG', '', '', '73895137480', ''],
['101100', 'ees', '', '1100', 'PAR_200', '21653346587', '0', '0', '20210301', '20210331', '1013,84', '1', ''],
['101110', 'fsc', '', '1110', 'C-200', '20210307', '1013,84', '1', '7252048000136', ''],
['101115', 'fer', '', '1115', '1', '', 'LI1600081181694N2K346', '0', '06', '110433', '1013,84', '1', '', ''],
['101120', 'ter', '', '1120', 'MG', '', '', '17651232321', '']]

当我用一个列表尝试这个时，有效：

my_list = ['1001100', 'xxx', '', '1100', 'PAR_200', '21651947694', '0', '0', '20210301', '20210331', '1630,51', '1', '']

delim = "|"

res = ''

for lists in my_list:
    res = res + str(lists) + delim

print(res)

1001100|xxx||1100|PAR_200|21651947694|0|0|20210301|20210331|1630,51|1||

但我认为我在列表理解中遗漏了一些内容，无法在列表列表中执行此操作：

delim = "|"

res = ''

for sub_lst in my_list_of_lists:
    for lists in sub_lst:
        res = res + str(lists) + delim

期望的输出：

1001100|xxx||1100|PAR_200|21651947694|0|0|20210301|20210331|1630,51|1||
1001110|sss||1110|C-200|20210307|1630,51|1|7252048000136||
1001115|ddd||1115|21||NO6520058050362|0|08|110433|1630,51|1|||
....

我做错了什么？

Answer 1

使用join:

lst = [['1001100', 'xxx', '', '1100', 'PAR_200', '21651947694', '0', '0', '20210301', '20210331', '1630,51', '1', ''],
['1001110', 'sss', '', '1110', 'C-200', '20210307', '1630,51', '1', '7252048000136', ''],
['1001115', 'ddd', '', '1115', '21', '', 'NO6520058050362', '0', '08', '110433', '1630,51', '1', '', ''],
['1001120', 'fff', '', '1120', 'MG', '', '', '73895137480', ''],
['101100', 'ees', '', '1100', 'PAR_200', '21653346587', '0', '0', '20210301', '20210331', '1013,84', '1', ''],
['101110', 'fsc', '', '1110', 'C-200', '20210307', '1013,84', '1', '7252048000136', ''],
['101115', 'fer', '', '1115', '1', '', 'LI1600081181694N2K346', '0', '06', '110433', '1013,84', '1', '', ''],
['101120', 'ter', '', '1120', 'MG', '', '', '17651232321', '']]

out = ['|'.join(l) for l in lst]
print(out)

输出

['1001100|xxx||1100|PAR_200|21651947694|0|0|20210301|20210331|1630,51|1|', '1001110|sss||1110|C-200|20210307|1630,51|1|7252048000136|', '1001115|ddd||1115|21||NO6520058050362|0|08|110433|1630,51|1||', '1001120|fff||1120|MG|||73895137480|', '101100|ees||1100|PAR_200|21653346587|0|0|20210301|20210331|1013,84|1|', '101110|fsc||1110|C-200|20210307|1013,84|1|7252048000136|', '101115|fer||1115|1||LI1600081181694N2K346|0|06|110433|1013,84|1||', '101120|ter||1120|MG|||17651232321|']

列表的分隔符列表

Delimiter List of list

python

list-comprehension

list

输出