b=sorted(list(set(a)))
for i,k in enumerate(a):
if a[i]>b[1]:
a[i]=0
elif a[i]==b[1]:
a[i]=1
else:
a[i]=2
我给你提示一下 剩下的应该很简单了
>>> import random>>> def RandomList(length=10,low=-10,high=10):
... RandomList=[]
... for i in range(length):
... RandomList.append(random.randint(low,high))
... return RandomList
...
>>> list = RandomList
>>> list
<function RandomList at 0x00000000021F7F98>
>>> list = RandomList()
>>> list
[3, 10, -7, -4, 9, -1, 5, 6, 9, 3]
>>> list=sorted(list)
>>> list
[-7, -4, -1, 3, 3, 5, 6, 9, 9, 10]
>>>
升序排序完成之后 第二小的肯定就是 list[1]而第二大的就是 list[length-2]