實例屬性
ascii
asciiValue
此字符的 ASCII 編碼值(如果它是 ASCII 字符)。
聲明
var asciiValue: UInt8? { get }
詳述
let chars: [Character] = ["a", " ", "™"]
for ch in chars {
print(ch, "-->", ch.asciiValue)
}
// Prints:
// a --> Optional(97)
// --> Optional(32)
// ™ --> nil
具有值 “\r\n” (CR-LF) 的字符被規範化為 “\n” (LF) 並且具有等於 10 的 asciiValue
屬性。
let cr = "\r" as Character
// cr.asciiValue == 13
let lf = "\n" as Character
// lf.asciiValue == 10
let crlf = "\r\n" as Character
// crlf.asciiValue == 10
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 Character asciiValue。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。