reject和reject!
reject返回不满足代码块的元素数组
reject!删除数组中满足代码块的元素
a=[1,2,3,5]a.reject! {|x| x<4}p a #[5] b = [1,2,3,4,5]c = b.reject {|x| x>4}p cp b
[1, 2, 3, 4]
[1, 2, 3, 4, 5]
时间: 2024-08-06 11:36:04
reject和reject!
reject返回不满足代码块的元素数组
reject!删除数组中满足代码块的元素
a=[1,2,3,5]a.reject! {|x| x<4}p a #[5] b = [1,2,3,4,5]c = b.reject {|x| x>4}p cp b
[1, 2, 3, 4]
[1, 2, 3, 4, 5]