it始终引用最内部的lambda参数，要访问外部参数，则必须命名它们.例如:

it always refers to the innermost lambda's parameter, to access outer ones, you have to name them. For example:

list1.filter { a -> list2.none { b -> a.weekday == b.weekday && a.time == b.time} }

(您可以将内部的内容保留为it，但我认为也可以更好一点).

(You could leave the inner one as it, but it's a bit nicer if you name that too, in my opinion.)

编辑:@ mfulton26链接了下面的相关文档，请参阅该文档以获取更多详细信息.

@mfulton26 linked the relevant documentation below, see that for more details.