python 合并列表 从大到小排序

#!/usr/bin/env python

# -*- coding: utf-8 -*-

a = [1,2,3,4,5]

b = [6,7,8,9,10]

a.extend(b)

a.reverse()

>>> a = [,,,,]

>>> b = [,,,,]

>>>

>>> a.extend(b)

>>> a.reverse()

>>> print(a)

[, , , , , , , , , ]

>>>

>>> a = [1,2,3,4,5]

>>> b = [6,7,8,9,10]

>>> a.extend(b)

>>> a

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10]

>>> a.sort(reverse=True)

>>> a

[10, 9, 8, 7, 6, 5, 4, 3, 2, 1]