• 問題：在json字符串轉(zhuǎn)換為對象的時候報錯，字面意思為 數(shù)據(jù)中出現(xiàn)了被控制- 的符號
• 解決思路：遍歷字符串，找到對應(yīng)的控制符，刪除之
• 代碼

+(NSString *)deleteControlCharacter:(NSString *)originalString{
    NSMutableString *mstring = [NSMutableString stringWithString:originalString];
    NSCharacterSet *controlChars = [NSCharacterSet controlCharacterSet];
    NSRange range = [originalString rangeOfCharacterFromSet:controlChars];
    while (range.location != NSNotFound){//包含
        [mstring deleteCharactersInRange:range];//刪除
        range = [mstring rangeOfCharacterFromSet:controlChars];//遞歸
    }
    return mstring;
}

完。
=========2020-08-31更新============
應(yīng)網(wǎng)友要求，添加swift版本

func deleteControlCharacter(oriString:String)-> String {
    let ocStr = oriString as NSString
    let ocMStr = NSMutableString.init(string: ocStr)
    let set = CharacterSet.controlCharacters
    var range = ocMStr.rangeOfCharacter(from: set)
    while range.location != NSNotFound {
        ocMStr.deleteCharacters(in: range)
        range = ocMStr.rangeOfCharacter(from: set)
    }
    let resultStr = ocMStr as String
    return resultStr
}