从循环返回根-Python

Question

I'm doing a class task and I'm stuck at returning root numbers from a loop separated by a comma. I can return one number but my loop seems to stop after that or something. I can't really find any clues on the mighty interweb but perhaps you can. The task is to return the root of i when i is between 5 and 20. So I thought of a while-loop but that might be a mistake.

import math

def multiplicator():
    """
    Return root from looped numbers
    """
    i = 5
    square = 0
    num = ""
    while i < 20:
        square = math.sqrt(i)
        num += str(square) + ","
        return num
        i += 1

ANSWER = multiplicator()

Could you please give me any pointers in this as I only get the root of the first number, 5.

Regards

Answer 1

您需要将return语句移到while循环之外，否则一旦计算出第一个数字的根，它将立即停止该函数。