我有两个数组
let toBeFiltered = ["star0", "star2", "star1", "star0", "star3", "star4"]
let theFilter = ["star1", "star3"]
如何使用第二个数组过滤第一个数组？实际上theFilter可以动态改变，例如
let theFilter = ["star2"]
or maybe
let theFilter = ["star0", "star4", "star2"]
感谢您的帮助 ：）
Use 设置操作
Set(toBeFiltered).intersection(Set(theFilter))
阅读更多：https://developer.apple.com/library/content/documentation/Swift/Conceptual/Swift_Programming_Language/CollectionTypes.html https://developer.apple.com/library/content/documentation/Swift/Conceptual/Swift_Programming_Language/CollectionTypes.html
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