在Python中展平浅层列表

def flatten_list(lst):
    return [item for sublist in lst for item in sublist]

nested_list = [[1, 2, 3], [4, 5, 6], [7, 8, 9]]
flat_list = flatten_list(nested_list)
print(flat_list)

def flatten_list(lst):
    result = []
    for item in lst:
        if isinstance(item, list):
            result.extend(flatten_list(item))
        else:
            result.append(item)
    return result

nested_list = [[1, 2, 3], [4, 5, 6], [7, 8, 9]]
flat_list = flatten_list(nested_list)
print(flat_list)