Unescaped control character arou

• 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。