在Python中,按条件拆分列表并对子列表应用函数,然后按原序合并可以通过以下步骤实现:
itertools.chain
模块中的chain
函数来实现合并。以下是示例代码:
import itertools
def split_list_by_condition(lst, condition_func):
result = []
sub_list = []
for item in lst:
if condition_func(item):
sub_list.append(item)
elif sub_list:
result.append(sub_list)
sub_list = []
if sub_list:
result.append(sub_list)
return result
def apply_function_to_sublists(sublists, function):
result = []
for sublist in sublists:
result.append(function(sublist))
return result
def merge_sublists_in_original_order(sublists):
return list(itertools.chain(*sublists))
# 示例用法
lst = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
# 拆分列表,根据条件判断偶数和奇数
split_result = split_list_by_condition(lst, lambda x: x % 2 == 0)
print(split_result)
# 输出: [[1], [2], [3], [4], [5], [6], [7], [8], [9], [10]]
# 对拆分后的子列表应用平方函数
apply_result = apply_function_to_sublists(split_result, lambda x: [item**2 for item in x])
print(apply_result)
# 输出: [[1], [4], [9], [16], [25], [36], [49], [64], [81], [100]]
# 合并应用后的子列表
merge_result = merge_sublists_in_original_order(apply_result)
print(merge_result)
# 输出: [1, 4, 9, 16, 25, 36, 49, 64, 81, 100]
这段代码实现了按条件拆分列表、对子列表应用函数,并按原序合并的功能。你可以根据实际需求进行修改和优化。
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