初始化器
init(_:)
從有限的項目序列創建一個新集合。
聲明
init<S>(_ sequence: S) where S : Sequence, Self.Element == S.Element
參數
sequence
用作新集合成員的元素。
詳述
使用此初始化程序從現有序列(如數組或範圍)創建新集合:
let validIndices = Set(0..<7).subtracting([2, 4, 5])
print(validIndices)
// Prints "[6, 0, 1, 3]"
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 SetAlgebra init(_:)。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。