Delimiter列表的列表

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', '']]

当我尝试使用单个列表时，工作:

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||

但是我认为我在列表理解中遗漏了一些东西，不能在列表的列表中执行此操作:

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

所需输出:

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

Use 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|']