在Swift中将阿拉伯字符串转换为英文数字

Question

如何将非英语数字转换为英文数字,​​如:Swift中的"3486912881"到"3486912881",或者我想接受英文数字并获取其他数字.

在Java Android中,这段代码对我有用:

private static String arabicToDecimal(String number) {
    char[] chars = new char[number.length()];
    for(int i=0;i<number.length();i++) {
        char ch = number.charAt(i);
        if (ch >= 0x0660 && ch <= 0x0669)
           ch -= 0x0660 - '0';
        else if (ch >= 0x06f0 && ch <= 0x06F9)
           ch -= 0x06f0 - '0';
        chars[i] = ch;
    }
    return new String(chars);
}

Answer 1

喜欢

     let NumberStr: String = "????-??-??"
    let Formatter = NumberFormatter()
    Formatter.locale = NSLocale(localeIdentifier: "EN") as Locale!
    if let final = Formatter.number(from: NumberStr) {
        print(final)

    }

产量

替代方式

选项2

extension String {
    public var arToEnDigits : String {
        let arabicNumbers = ["?": "0","?": "1","?": "2","?": "3","?": "4","?": "5","?": "6","?": "7","?": "8","?": "9"]
        var txt = self
        arabicNumbers.map { txt = txt.replacingOccurrences(of: $0, with: $1)}
        return txt
    }
}

Answer 2

使用的问题NumberFormatter是它将忽略其他非数字字符,例如,如果你有Hello ???它将123.要保留其他字符并仅转换数字字符,您可以使用以下内容:

public extension String {

public var replacedArabicDigitsWithEnglish: String {
    var str = self
    let map = ["?": "0",
               "?": "1",
               "?": "2",
               "?": "3",
               "?": "4",
               "?": "5",
               "?": "6",
               "?": "7",
               "?": "8",
               "?": "9"]
    map.forEach { str = str.replacingOccurrences(of: $0, with: $1) }
    return str
}
}

/// usage

"Hello ???????????".replacedArabicDigitsWithEnglish // "Hello 12345678910"

Answer 3

要将上述代码用作函数，请尝试以下操作：

func toEnglishNumber(number: String) -> NSNumber {

       var result:NSNumber = 0

    let numberFormatter = NumberFormatter()
    numberFormatter.locale = Locale(identifier: "EN")
    if let finalText = numberFormatter.number(from: number)
    {
        print("Intial text is: ", number)
        print("Final text is: ", finalText)


        result =  finalText

    }


     return result
}

要使用该功能：

 print(toEnglishNumber(number: "??"))