Python |将元组列表转换为数字
给定一个元组列表,任务是将其转换为列表元素中存在的所有数字的列表。
让我们讨论执行这项任务的某些方式。
方法#1:使用re
将元组列表转换为列表元素中存在的所有数字的列表,最简洁易读的方法是使用 re 。
# Python code to convert list of tuples into
# list of all digits which exists
# in elements of list.
# Importing
import re
# Input list initialization
lst = [(11, 100), (22, 200), (33, 300), (44, 400), (88, 800)]
# Using re
temp = re.sub(r'[\[\]\(\), ]', '', str(lst))
# Using set
Output = [int(i) for i in set(temp)]
# Printing output
print("Initial List is :", lst)
print("Output list is :", Output)
Output:
初始列表为:[(11,100),(22,200),(33,300),(44,400),(88,800)] 输出列表为:[1,4,8,0,3,2]
方法二:使用itertools.chain()``lambda()
这是使用lambda()
执行该特定任务的另一种方式。
# Python code to convert list of tuples into
# list of all digits which exists
# in elements of list.
# Importing
from itertools import chain
# Input list initialization
lst = [(11, 100), (22, 200), (33, 300), (44, 400), (88, 800)]
# using lambda
temp = map(lambda x: str(x), chain.from_iterable(lst))
# Output list initialization
Output = set()
# Adding element in Output
for x in temp:
for elem in x:
Output.add(elem)
# Printing output
print("Initial List is :", lst)
print("Output list is :", Output)
Output:
初始列表为:[(11,100),(22,200),(33,300),(44,400),(88,800)] 输出列表为:{'8 ',' 4 ',' 0 ',' 2 ',' 1 ',' 3'}
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