實例方法
sorted()
返回已排序的序列元素。
聲明
func sorted() -> [Self.Element]
當
Element
符合 Comparable
時可用。返回值
序列元素的排序數組。
詳述
您可以通過調用此方法對符合Comparable
協議的任何元素序列進行排序。元素按升序排序。
這是對學生姓名列表進行排序的示例。 Swift 中的字符串符合 Comparable
協議,因此名稱根據小於運算符 (<
) 以升序排序。
let students: Set = ["Kofi", "Abena", "Peter", "Kweku", "Akosua"]
let sortedStudents = students.sorted()
print(sortedStudents)
// Prints "["Abena", "Akosua", "Kofi", "Kweku", "Peter"]"
要按降序對序列的元素進行排序,請將大於運算符 (>
) 傳遞給 sorted(by:)
方法。
let descendingStudents = students.sorted(by: >)
print(descendingStudents)
// Prints "["Peter", "Kweku", "Kofi", "Akosua", "Abena"]"
排序算法不能保證穩定。穩定排序保留比較相等的元素的相對順序。
可用版本
iOS 8.0+, iPadOS 8.0+, macOS 10.10+, Mac Catalyst 13.0+, tvOS 9.0+, watchOS 2.0+
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注:本文由純淨天空篩選整理自apple.com大神的英文原創作品 UnsafeRawBufferPointer sorted()。非經特殊聲明,原始代碼版權歸原作者所有,本譯文未經允許或授權,請勿轉載或複製。