删除Swift中除破折号以外的字符串中的标点符号

import Foundation

func removePunctuation(from string: String) -> String {
    let regex = try! NSRegularExpression(pattern: "[^\\p{L}\\p{N}-]+", options: .caseInsensitive)
    let range = NSRange(location: 0, length: string.utf16.count)
    return regex.stringByReplacingMatches(in: string, options: [], range: range, withTemplate: "")
}

let input = "Hello, World!"
let output = removePunctuation(from: input)
print(output) // 输出: Hello-World

import Foundation

func removePunctuation(from string: String) -> String {
    let punctuationSet = CharacterSet.punctuationCharacters
    let filtered = string.unicodeScalars.filter { !punctuationSet.contains($0) }
    return String(filtered)
}

let input = "Hello, World!"
let output = removePunctuation(from: input)
print(output) // 输出: Hello World