Python用户输入split（）和循环

Question

I am taking user input as follows: 0,1,2,3,5 The user can write any number and separate it with a comma, the input will be x,y,z,k,c

Then I am having trouble checking if any of the number after split() is invoked is 0 or more than 30.

Code-snippet:

numbers = input(user[i]['name'] + 
", assign 10 different numbers between 1-30 (separate each with a comma ','): ")
        usrNums = numbers.split()

for number in usrNums:
    if number < 1 or number > 30: 
     #Something goes here, however, not important now. 

Ps I've read a little bit on all()

Clarification: The user inputs some numbers eg 0,5,2,9,7,10 the usrNums = numbers.split() split() is invoked and these are stored in usrNums , then I want to check each number in usrNums [0, 5, 2, 9, 7, 10] if any of them is "0 meaning number < 1 or > 30".

EDIT: NO THIS IS NOT A DUPLICATE, I read through, How can I read inputs as integers in Python? , and it isn't the same at all. My question is about user inputting numbers with separated commas, not one number per input.

Answer 1

when you use split the numbers are of type string. To compare with 1 or 30 convert these to integers

numbers  = "0,1,2,3,5"
usrNums = numbers.split(",")
#usrNums ["0","1","2","3","5"]
for number in usrNums:
    if int(number) < 1 or int(number) > 30: 

Answer 2

numbers = "1,2,3,31"
for number in numbers.split(","):
    number = eval(number) # or use int(number) or float(number) as example
    if number < 1 or number > 30:
        #do something

You forget the "," in the split function and forget to convert the string into an integer.

Answer 3

You can use map() method.

numberString = '1, 2, 3, 4, 5, 6, 7'
numbers = map(int, numberString.split(',')) # numbers = [1, 2, 3, 4, 5, 6, 7]
for num in numbers:
    if num < 1 or num > 30:
        # Do whatever you want here...

Hope this helps! :)

Answer 4

The input is a string. Use eval to compare to int :

for number in usrNums:
     if eval(number) < 1 or eval(number) > 30: 
     #Something goes here, however, not important now. 

You also need to indicate how to split the string : input.split(',')