如何在python中向多个列表中插入元素?[重复]

一般来说,如果你想把一个项目附加到一个列表中的一个列表中,你可以循环它,然后 append(item) 到列表的末尾。

for item in ls:
    item.append('Dave')

由于您试图同时对两个列表进行操作,因此可以使用内置的 zip 作用

ls = [[1649534580000, 165.76, 165.86, 165.57, 165.57, 27.45, 10], [1649534640000, 165.6, 165.69, 165.42, 165.46, 44.1, 23]]
names = ['Dave', 'Bob']
for list_item, name in zip(ls, names):
    list_item.append(name)

这适用于相同长度的列表。如果您的列表有不同大小的风险,请尝试使用 the answer to this question

试试这样:

ls = [[1649534580000, 165.76, 165.86, 165.57, 165.57, 27.45, 10], [1649534640000, 165.6, 165.69, 165.42, 165.46, 44.1, 23]]
new_vals = ['Dave', 'Bob']

# Create a function
# Accept existing list and new values (list) as arguments
def add_new_elems(_my_list, _new_vals):
    assert len(_my_list) == len(new_vals), 'Length of existing list and new values is not same'
    # Utilize list comprehension to append data
    [_my_list[i].append(_new_vals[i]) for i in range(len(_my_list))]
    return _my_list


print(add_new_elems(ls, new_vals))
######
[[1649534580000, 165.76, 165.86, 165.57, 165.57, 27.45, 10, 'Dave'], [1649534640000, 165.6, 165.69, 165.42, 165.46, 44.1, 23, 'Bob']]