擅长:python、mysql、java
<p>如果通过删除<code>print</code>直接返回,它将起作用:</p>
<pre><code>def difference(numbers):
for number in numbers:
i=0
dif_list=[]
while i < len(numbers)-1:
dif_list.append(numbers[i+1]-numbers[i])
i +=1
if len(dif_list) == len(numbers)-1:
return (dif_list)
assert difference([1,2,5,3]) == [1, 3, -2]
</code></pre>