从集合中提取数据也是有两种方法：过滤，列表解析式：
#!/usr/bin/env python
#coding:utf-8
#@Author:Andy
from random import randint
data = [randint(1, 11) for x in range(1, 11)]
print(data)
#Translate to set
set1 = set(data)
# filter the n which can % 3
res1 = {x for x in set1 if x %3 ==0 }
res2 = filter(lambda x : x %3 == 0 , set1)
print(res1)
print(list(res2))
