如何在 Python 函数中使用整个列表作为参数？

Question

I was trying to make a function in Python that would take a list as input, and return a multiple of all the numbers in the list:

def multiply_list(numbers):
    product = 1

    for int in numbers:
        product = product*numbers[int]

    return product

I tried testing it by using:

ints = [1, 7, 3, 4]

print(multiply_list(ints))

However, I get a "list index out of range"-exception. For some reason I can't figure out why I am getting this exception. Any advice would be appreciated!

Answer 1

for int in numbers:
        product = product*int

int is the actual item, not an index

Answer 2

Try this:

def multiply_list(numbers):
  product = 1    
  return [ product * x for x in numbers]

ints = [1, 7, 3, 4]

print(multiply_list(ints))