为什么这里输出为none？

Question

𨺳/𪃭 市𦥑甲 成樂

import random

new_list=[]
for_ in range(10) :
i=random.randint(0,100)
new_list.append(i)

def assem (num) :
odd=[]
even=[]
for a in num
if a%2:
odd.append(a)
else：
even.append(a)

nem-tuple=assem(nev-list)
print (new_tuple)

结果输出了个none，什么都没有

Answer 1

import random

new_list = []
for _ in range(10):
    i = random.randint(0, 100)
    new_list.append(i)

def assem(num):
    odd = []
    even = []
    for a in num:
        if a % 2:
            odd.append(a)
        else:
            even.append(a)
    return odd, even

new_tuple = assem(new_list)
print(new_tuple)

你没有 return odd, even