[英]How to check if a sequence of integers is in a list
I want the program to continue executing until every element on the list is a string.我希望程序继续执行,直到列表中的每个元素都是一个字符串。
That is那是
li = [1, 2, 6, 'h', 'y', 'h', 'y', 4]
should stop when应该在什么时候停止
li = [all elements type are strings]
li = [1, 2, 6, 'h', 'y', 'h', 'y', 4]
while '''there are still numbers in the list''':
#code keeps on executing and updating li[] with string input
else:
# output the list with no numbers
This is what I have tried, but if the first[0]
and and last[7]
element becomes a string, the while loop goes to the last else condition even with int
type present in the list.这是我尝试过的,但是如果
first[0]
和last[7]
元素变成一个字符串,while 循环会转到最后一个 else 条件,即使列表中存在int
类型。 if done sequentially, it works fine.如果按顺序完成,它工作正常。
li = [8, 2, 6, 'h', 'y', 'h', 'y', 4]
for a in li:
while a in li:
if type(a) == int:
x = int(input('Position: '))
entry = input('Enter: ')
li.pop(x)
li.insert(x, entry)
print(li) # to see what's happening
li = li
else:
print('Board is full')
print(li)
But, I don't want it sequentially.但是,我不希望它按顺序进行。
Therefore, it should continue if因此,它应该继续,如果
li = [c, 2, 6, 'h', 'y', 'h', 'y', f]
and stop when并在什么时候停止
li = [a, b, c, 'h', 'y', 'h', 'y', d]
all strings所有字符串
You can use all
or any
in conjunction with string.isnumeric()
to check this您可以将
all
或any
与string.isnumeric()
结合使用来检查这一点
li = ['a', 1, 2]
while any(str(ele).isnumeric() for ele in li):
modify li ...
The solution you asked for is possible.您要求的解决方案是可能的。 But one piece of advice while writing in python, is to avoid doing type checking explicitly (type(a) == int).
但是在用 python 编写时的一条建议是避免显式地进行类型检查 (type(a) == int)。 below is a simple solution.
下面是一个简单的解决方案。
import string
import random
letter = random.choice(string.ascii_letters) #swapping data
xe = [8, 2, 6, 'h', 'y', 'h', 'y', 4]
for i in range(len(xe)):
try:
xe[i].upper()
except:
xe.pop(i)
xe.insert(i,letter)
print(xe)
I think you can do this:我认为你可以这样做:
li = [1, 2, 3, h, y, 5, g, 3]
length = len(li)
while count != length:
for row in li:
if type(row) == int:
li.pop(row)
count += 1
Geckos gave me a clue.壁虎给了我一个线索。 Thank you for that.
谢谢你。 I found out that using isinstance with any() solves the problem
我发现使用 isinstance 和 any() 解决了这个问题
li = ['a', 1, 2]
while any(isinstance(element, int) for element in li):
#code goes here...
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