Python–分组连接直到 K
原文:https://www . geesforgeks . org/python-group-concatenate-till-k/
给定字符串列表，分组执行连接，直到 k
输入:test _ list =[“Gfg”、“is”、“Best”、“”、“I”、“Love”、“”、“Gfg”]、K =“ 输出:[‘Gfg 是 Best’，‘I Love’，‘Gfg’] 解释:串接单词用“”作为新的字符串分隔符。
输入:test _ list =[“Gfg”、“is”、“Best”、“”、“I”、“Love”]、K =“ 输出:[“Gfg 是 Best”、“I Love”] 解释:以“”为新字符串分隔符的串联词。
方法:使用循环+连接()+列表理解
这是执行这项任务的一种方式。在本文中，我们将部分字符串构造成列表，然后使用 join()和列表理解来执行单个列表的连接。
Python 3
# Python3 code to demonstrate working of
# Group concatenate Till K
# Using loop + join() + list comprehension
# initializing lists
test_list = ["Gfg", "is", "Best", None, "I", "Love", None, "Gfg"]
# printing original list
print("The original list : " + str(test_list))
# initializing K
K = None
# all() to encapsulate whole logic into one expression
res = [[]]
for sub in test_list:
# checking for K value, and performing append to
# latest list
if sub != K:
res[-1].append(sub)
else:
# constructing new list if new group
res.append([])
# Joining all groups
fin_res = [' '.join(ele) for ele in res]
# printing result
print("Concatenated Groups : " + str(fin_res))
Output
The original list : ['Gfg', 'is', 'Best', None, 'I', 'Love', None, 'Gfg']
Concatenated Groups : ['Gfg is Best', 'I Love', 'Gfg']
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