本文介绍了在类中使用递归的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
限时送ChatGPT账号..我正在为考试而练习,并试图解决这个问题.我只是不知道如何处理 add 方法.这是我目前所拥有的:
I'm practicing for an exam and trying to figure this out. I'm just not exactly what to do with the add method. This is what I have so far:
class recursion:
def __init__(self, lst=[]):
self.lst = lst
def add(self, x, y):
return x + y
def recurs(self):
if len(self.lst) == 1:
return lst[0]
else:
return self.lst[0].add(self.recurs(lst[1:])
推荐答案
假设您正在尝试递归获取列表的总和:
Assuming you're trying to recursively get the sum of the list:
本质上,recursive_sum_helper
不断用较小的列表调用自己:
Essentially, recursive_sum_helper
keeps calling itself with smaller lists:
sum(1, 2, 3, 4) = 1+sum(2,3,4) = 1+( 2 + sum(3,4) ) = ...
sum(1, 2, 3, 4) = 1+sum(2,3,4) = 1+( 2 + sum(3,4) ) = ...
class recursive_summer:
def __init__(self, lst=[]):
self.lst = lst
def recursive_sum(self):
return self.recursive_sum_helper(self.lst)
def recursive_sum_helper(self, a_lst):
if len(a_lst) == 1:
return a_lst[0]
else:
first_element = a_lst[0]
list_without_first_element = a_lst[1:]
return first_element + self.recursive_sum_helper( list_without_first_element )
r = recursive_summer([1,2,3,4])
r.recursive_sum()
输出为 10.
希望这对您要解决的任何问题有所帮助.
Hope this helps with whatever problem you're trying to solve.
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