python random扩展随机数函数choice(seq)

扩展随机数函数choice(seq)，从序列seq中随机选取一个元素。

代码及运行结果如下：

>>> import random
>>> random.choice([1,2,3,4,5,6,7,8,9,10])
8
>>> random.choice([1,2,3,4,5,6,7,8,9,10])
2
>>> random.choice([1,2,3,4,5,6,7,8,9,10])
6
>>> random.choice([1,2,3,4,5,6,7,8,9,10])
3
>>> random.choice([1,2,3,4,5,6,7,8,9,10])
10
>>> random.choice([1,2,3,4,5,6,7,8,9,10])
2
>>> random.choice([1,2,3,4,5,6,7,8,9,10])
8
>>> random.choice([1,2,3,4,5,6,7,8,9,10])
4
>>> random.choice([1,2,3,4,5,6,7,8,9,10])
3
>>> random.choice([1,2,3,4,5,6,7,8,9,10])
3