Unescaped control character around character XX错误解决

• 问题：在json字符串转换为对象的时候报错，字面意思为 数据中出现了被控制- 的符号
• 解决思路：遍历字符串，找到对应的控制符，删除之
• 代码

+(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];//删除
        range = [mstring rangeOfCharacterFromSet:controlChars];//递归
    }
    return mstring;
}

完。
=========2020-08-31更新============
应网友要求，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
}