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Swift大写和小写字符串

2024-04-12 03:08:03 281

示例

要使字符串中的所有字符都大写或小写：

2.2

let text = "AaBbCc"
let uppercase =text.uppercaseString// "AABBCC"
let lowercase =text.lowercaseString// "aabbcc"

3.0

let text = "AaBbCc"
let uppercase = text.uppercased() // "AABBCC"
let lowercase = text.lowercased() // "aabbcc"