如何在每次迭代中删除范围的第一个值？

Question

I would like to use a for loop before while loop and define a range and in each iteration, I would like to remove the first value of for loop

the results that I would like to get after first iteration is h will be in the range(1, 30), next iteration(2,30) and until the end. The reason is my while loop doesn't use other values and only use the first value, I would like to use all 30 numbers

Answer 1

I am just guessing what you are trying to do so I won't write any code but a logic is simple: put the code you have inside another for loop with variable i - from 0 to 30, then in you current code change 0 to i. This way, your inner loop will iterate from 0 to 30, then 1 to 30, 2 to 30 and so on.

Answer 2

If you have a range, or a list of numbers, you could simply declare a variable before the while loop, eg i = 0 , and in the while loop point it at the index of the number in the list that you want to work on. At the end of the while loop, increment i .

You'd have something like this:

foo = [ 1, 2, 3, 4, 5 ]
i = 0
while i < len(foo) :
    number_to_process = foo[i]
    *operations on number_to_process*
    i += 1