样本数组: x = [1,2,3,4,2,2,2] 过滤: y = [2,4,7,9] 期望的输出: result = [2,4,2,2,2] 我试过了: result = (x y) 但这给了我[4,2]. 我怎么得到:结果= [2,4,2,2,2]? 怎么样: x - (x - y)#= [2, 4, 2, 2, 2]
x = [1,2,3,4,2,2,2]
过滤:
y = [2,4,7,9]
期望的输出:
result = [2,4,2,2,2]
我试过了:
result = (x & y)
但这给了我[4,2].
我怎么得到:结果= [2,4,2,2,2]?
怎么样:x - (x - y) #=> [2, 4, 2, 2, 2]