封装常用方法，持续更新中

//根据日期算出周几

    + (NSString*)weekdayStringFromDate:(NSDate*)inputDate
    {
        NSArray *weekdays = [NSArray arrayWithObjects: [NSNull null], @"周日", @"周一", @"周二", @"周三", @"周四", @"周五", @"周六", nil];
        NSCalendar *calendar = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar];
        NSTimeZone *timeZone = [[NSTimeZone alloc] initWithName:@"Asia/Shanghai"];
        [calendar setTimeZone: timeZone];
        NSCalendarUnit calendarUnit = NSWeekdayCalendarUnit;
        NSDateComponents *theComponents = [calendar components:calendarUnit fromDate:inputDate];
    
    return [weekdays objectAtIndex:theComponents.weekday];
    }

//转化为时间字符串

    + (NSString *)dateStringFromNumberTimer:(NSString *)timerStr {
        //转化为Double
        double t = [timerStr doubleValue];
        //计算出距离1970的NSDate
        NSDate *date = [NSDate dateWithTimeIntervalSince1970:t];
        //转化为 时间格式化字符串
        //NSDateFormatter *df = [[[NSDateFormatter alloc] init] autorelease];
        
        NSDateFormatter *df = [[NSDateFormatter alloc] init];
        df.dateFormat = @"yyyy-MM-dd HH:mm:ss";
        //转化为 时间字符串
        return [df stringFromDate:date];
    }

//动态 计算行高
//根据字符串的实际内容的多少 在固定的宽度和字体的大小，动态的计算出实际的高度

    + (CGFloat)textHeightFromTextString:(NSString *)text width:(CGFloat)textWidth fontSize:(CGFloat)size{
        if ([MZLUtility getCurrentIOS] >= 7.0) {
            //iOS7之后
            /*
             第一个参数: 预设空间 宽度固定  高度预设 一个最大值
             第二个参数: 行间距 如果超出范围是否截断
             第三个参数: 属性字典 可以设置字体大小
             */
            NSDictionary *dict = @{NSFontAttributeName:[UIFont systemFontOfSize:size]};
            CGRect rect = [text boundingRectWithSize:CGSizeMake(textWidth, MAXFLOAT) options:NSStringDrawingTruncatesLastVisibleLine|NSStringDrawingUsesFontLeading|NSStringDrawingUsesLineFragmentOrigin attributes:dict context:nil];
            //返回计算出的行高
            return rect.size.height;
            
        }else {
            //iOS7之前
            /*
             1.第一个参数  设置的字体固定大小
             2.预设 宽度和高度 宽度是固定的 高度一般写成最大值
             3.换行模式 字符换行
             */
            CGSize textSize = [text sizeWithFont:[UIFont systemFontOfSize:size] constrainedToSize:CGSizeMake(textWidth, MAXFLOAT) lineBreakMode:NSLineBreakByCharWrapping];
            return textSize.height;//返回 计算出得行高
        }
    }

//获取iOS版本号

    + (double)getCurrentIOS {
        return [[[UIDevice currentDevice] systemVersion] doubleValue];
    }
    + (CGSize)getScreenSize {
        return [[UIScreen mainScreen] bounds].size;
    }

//获得当前系统时间到指定时间的时间差字符串,传入目标时间字符串和格式

    +(NSString*)stringNowToDate:(NSString*)toDate formater:(NSString*)formatStr
    {
    
    NSDateFormatter *formater=[[NSDateFormatter alloc] init];
    if (formatStr) {
        [formater setDateFormat:formatStr];
    }
    else{
        [formater setDateFormat:[NSString stringWithFormat:@"yyyy-MM-dd HH:mm:ss"]];
    }
    NSDate *date=[formater dateFromString:toDate];
    
    return [self stringNowToDate:date];
    
    }

//获得到指定时间的时间差字符串,格式在此方法内返回前自己根据需要格式化

    +(NSString*)stringNowToDate:(NSDate*)toDate
    {
        //创建日期 NSCalendar对象
        NSCalendar *cal = [NSCalendar currentCalendar];
        //得到当前时间
        NSDate *today = [NSDate date];
        
    //用来得到具体的时差,位运算
    unsigned int unitFlags = NSYearCalendarUnit | NSMonthCalendarUnit | NSDayCalendarUnit | NSHourCalendarUnit | NSMinuteCalendarUnit | NSSecondCalendarUnit ;
    
    if (toDate && today) {//不为nil进行转化
        NSDateComponents *d = [cal components:unitFlags fromDate:today toDate:toDate options:0 ];
        
        //NSString *dateStr=[NSString stringWithFormat:@"%d年%d月%d日%d时%d分%d秒",[d year],[d month], [d day], [d hour], [d minute], [d second]];
        NSString *dateStr=[NSString stringWithFormat:@"%02ld:%02ld:%02ld",[d hour], [d minute], [d second]];
        return dateStr;
    }
    return @"";
    }

//获取 一个文件 在沙盒Library/Caches/ 目录下的路径

    + (NSString *)getFullPathWithFile:(NSString *)urlName {
    
    //先获取 沙盒中的Library/Caches/路径
    NSString *docPath = [NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES) lastObject];
    NSString *myCacheDirectory = [docPath stringByAppendingPathComponent:@"MyCaches"];
    //检测MyCaches 文件夹是否存在
    if (![[NSFileManager defaultManager] fileExistsAtPath:myCacheDirectory]) {
        //不存在 那么创建
        [[NSFileManager defaultManager] createDirectoryAtPath:myCacheDirectory withIntermediateDirectories:YES attributes:nil error:nil];
    }
    //用md5进行 加密 转化为 一串十六进制数字 (md5加密可以把一个字符串转化为一串唯一的用十六进制表示的串)
    NSString * newName = MD5Hash(urlName);
    
    //拼接路径
    return [myCacheDirectory stringByAppendingPathComponent:newName];
    }
//检测 缓存文件 是否超时

    + (BOOL)isTimeOutWithFile:(NSString *)filePath timeOut:(double)timeOut {
        //获取文件的属性
        NSDictionary *fileDict = [[NSFileManager defaultManager] attributesOfItemAtPath:filePath error:nil];
        //获取文件的上次的修改时间
        NSDate *lastModfyDate = fileDict.fileModificationDate;
        //算出时间差 获取当前系统时间 和 lastModfyDate时间差
        NSTimeInterval sub = [[NSDate date] timeIntervalSinceDate:lastModfyDate];
        if (sub < 0) {
            sub = -sub;
        }
        //比较是否超时
        if (sub > timeOut) {
            //如果时间差 大于 设置的超时时间 那么就表示超时
            return YES;
        }
        return NO;
    }

//清除缓存

    + (void) resetCache {
        [[NSFileManager defaultManager] removeItemAtPath:[MZLCache cacheDirectory] error:nil];
    }

//缓存目录

    + (NSString*) cacheDirectory {
        NSArray* paths = NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES);
        NSString *cacheDirectory = [paths objectAtIndex:0];
        cacheDirectory = [cacheDirectory stringByAppendingPathComponent:@"MZLCaches"];
        return cacheDirectory;
    }

//删除指定的缓存

    + (NSData*) objectForKey:(NSString*)key {
        NSFileManager *fileManager = [NSFileManager defaultManager];
        NSString *filename = [self.cacheDirectory stringByAppendingPathComponent:key];
        
        if ([fileManager fileExistsAtPath:filename])
        {
            NSDate *modificationDate = [[fileManager attributesOfItemAtPath:filename error:nil] objectForKey:NSFileModificationDate];
            if ([modificationDate timeIntervalSinceNow] > cacheTime) {
                [fileManager removeItemAtPath:filename error:nil];
            } else {
                NSData *data = [NSData dataWithContentsOfFile:filename];
                return data;
            }
        }
        return nil;
    }

//创建指定缓存

    + (void) setObject:(NSData*)data forKey:(NSString*)key {
        NSFileManager *fileManager = [NSFileManager defaultManager];
        NSString *filename = [self.cacheDirectory stringByAppendingPathComponent:key];
        
        BOOL isDir = YES;
        if (![fileManager fileExistsAtPath:self.cacheDirectory isDirectory:&isDir]) {
            [fileManager createDirectoryAtPath:self.cacheDirectory withIntermediateDirectories:NO attributes:nil error:nil];
        }
        
        NSError *error;
        @try {
            [data writeToFile:filename options:NSDataWritingAtomic error:&error];
        }
        @catch (NSException * e) {
            //TODO: error handling maybe
        }
    }

// 获取某个路径下文件大小

    + (long long) fileSizeAtPath:(NSString*) filePath{
        
        NSFileManager* manager = [NSFileManager defaultManager];
        if ([manager fileExistsAtPath:filePath]){
            
        return [[manager attributesOfItemAtPath:filePath error:nil] fileSize];
    }
    return 0;
    
    }

// 获取缓存大小

    + (float ) folderSizeAtPath:(NSString*) folderPath{
        NSFileManager* manager = [NSFileManager defaultManager];
        if (![manager fileExistsAtPath:folderPath])
            return 0;
        NSEnumerator *childFilesEnumerator = [[manager subpathsAtPath:folderPath] objectEnumerator];
        NSString* fileName;
        long long folderSize = 0;
        while ((fileName = [childFilesEnumerator nextObject]) != nil){
            NSString* fileAbsolutePath = [folderPath stringByAppendingPathComponent:fileName];
            folderSize += [MZLCache fileSizeAtPath:fileAbsolutePath];
        }
        return folderSize/(1024.0*1024.0);
    }

//MD5加密字符串

    NSString * MD5Hash(NSString *aString) {
        const char *cStr = [aString UTF8String];
        unsigned char result[16];
        CC_MD5( cStr, (CC_LONG)strlen(cStr), result );
        return [NSString stringWithFormat:@"%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X",
                result[0], result[1], result[2], result[3],
                result[4], result[5], result[6], result[7],
                result[8], result[9], result[10], result[11],
                result[12], result[13], result[14], result[15]];
    }

/**
 *  手机号码验证
 *
 *  @param mobileNumbel 传入的手机号码
 *
 *  @return 格式正确返回true  错误 返回fals
 */
+ (BOOL)isMobileNumber:(NSString *)mobileNum
{
    /**
     * 手机号码
     * 移动：134[0-8],135,136,137,138,139,150,151,157,158,159,182,187,188
     * 联通：130,131,132,152,155,156,185,186
     * 电信：133,1349,153,180,189,181(增加)
     * 新增：14_,17_
     */
    NSString * MOBIL = @"^1(3[0-9]|4[0-9]|5[0-35-9]|7[0-9]|8[025-9])\\d{8}$";
    /**
     10         * 中国移动：China Mobile
     11         * 134[0-8],135,136,137,138,139,150,151,157,158,159,182,187,188
     12         */
    NSString * CM = @"^1(34[0-8]|(3[5-9]|5[017-9]|8[2378])\\d)\\d{7}$";
    /**
     15         * 中国联通：China Unicom
     16         * 130,131,132,152,155,156,185,186
     17         */
    NSString * CU = @"^1(3[0-2]|5[256]|8[56])\\d{8}$";
    /**
     20         * 中国电信：China Telecom
     21         * 133,1349,153,180,189,181(增加)
     22         */
    NSString * CT = @"^1((33|53|8[019])[0-9]|349)\\d{7}$";
    /**
     25         * 大陆地区固话及小灵通
     26         * 区号：010,020,021,022,023,024,025,027,028,029
     27         * 号码：七位或八位
     28         */
    // NSString * PHS = @"^0(10|2[0-5789]|\\d{3})\\d{7,8}$";
    
    NSPredicate *regextestmobile = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", MOBIL];
    NSPredicate *regextestcm = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", CM];
    NSPredicate *regextestcu = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", CU];
    NSPredicate *regextestct = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", CT];
    
    if (([regextestmobile evaluateWithObject:mobileNum]
         || [regextestcm evaluateWithObject:mobileNum]
         || [regextestct evaluateWithObject:mobileNum]
         || [regextestcu evaluateWithObject:mobileNum])) {
        return YES;
    }
    
    return NO;
}

/**
 *  密码验证
 *
 *  @param password 传入的密码 6-16位 大小写数字
 *
 *  @return 格式正确返回true  错误 返回fals
 */
+ (BOOL)isPassword:(NSString *)password
{
    
    NSRegularExpression *regularexpression = [[NSRegularExpression alloc]
                                              initWithPattern:@"^[a-zA-Z0-9]{6,16}$"
                                              options:NSRegularExpressionCaseInsensitive
                                              error:nil];
    NSUInteger numberofMatch = [regularexpression numberOfMatchesInString:password
                                                                  options:NSMatchingReportProgress
                                                                    range:NSMakeRange(0, password.length)];
    if(numberofMatch > 0)
        return YES;
    return NO;
}

/**
 *  邮箱验证
 *
 *  @param email 传入的邮箱
 *
 *  @return 格式正确返回true  错误 返回fals
 */
+ (BOOL) isEmail:(NSString *)email
{
    NSString *emailRegex = @"[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,4}";
    
    NSPredicate *emailTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", emailRegex];
    
    if ([emailTest evaluateWithObject:email]) {
        
        return YES;
    }
    return NO;
}

/**
 *  身份证号验证
 *
 *  @param identityCard 传入的身份证号
 *
 *  @return 格式正确返回true  错误 返回fals
 */
+ (BOOL) isIdentityCard: (NSString *)identityCard
{
    
    NSString *idnum = @"^(\\d{14}|\\d{17})(\\d|[xX])$";
    
    NSPredicate *identityCardPredicate = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",idnum];
    
    return [identityCardPredicate evaluateWithObject:identityCard];
}

/** 银行卡号有效性问题Luhn算法
 *  现行 16 位银联卡现行卡号开头 6 位是 622126～622925 之间的，7 到 15 位是银行自定义的，
 *  可能是发卡分行，发卡网点，发卡序号，第 16 位是校验码。
 *  16 位卡号校验位采用 Luhm 校验方法计算：
 *  1，将未带校验位的 15 位卡号从右依次编号 1 到 15，位于奇数位号上的数字乘以 2
 *  2，将奇位乘积的个十位全部相加，再加上所有偶数位上的数字
 *  3，将加法和加上校验位能被 10 整除。
 */
+ (BOOL) isBankCardluhmCheck:(NSString *)bankNumber
{
    NSString * lastNum = [[bankNumber substringFromIndex:(bankNumber.length-1)] copy];//取出最后一位
    NSString * forwardNum = [[bankNumber substringToIndex:(bankNumber.length -1)] copy];//前15或18位
    
    NSMutableArray * forwardArr = [[NSMutableArray alloc] initWithCapacity:0];
    for (int i=0; i<forwardNum.length; i++) {
        NSString * subStr = [forwardNum substringWithRange:NSMakeRange(i, 1)];
        [forwardArr addObject:subStr];
    }
    
    NSMutableArray * forwardDescArr = [[NSMutableArray alloc] initWithCapacity:0];
    for (int i = (int)(forwardArr.count-1); i> -1; i--) {//前15位或者前18位倒序存进数组
        [forwardDescArr addObject:forwardArr[i]];
    }
    
    NSMutableArray * arrOddNum = [[NSMutableArray alloc] initWithCapacity:0];//奇数位*2的积 < 9
    NSMutableArray * arrOddNum2 = [[NSMutableArray alloc] initWithCapacity:0];//奇数位*2的积 > 9
    NSMutableArray * arrEvenNum = [[NSMutableArray alloc] initWithCapacity:0];//偶数位数组
    
    for (int i=0; i< forwardDescArr.count; i++) {
        NSInteger num = [forwardDescArr[i] intValue];
        if (i%2) {//偶数位
            [arrEvenNum addObject:[NSNumber numberWithInteger:num]];
        }else{//奇数位
            if (num * 2 < 9) {
                [arrOddNum addObject:[NSNumber numberWithInteger:num * 2]];
            }else{
                NSInteger decadeNum = (num * 2) / 10;
                NSInteger unitNum = (num * 2) % 10;
                [arrOddNum2 addObject:[NSNumber numberWithInteger:unitNum]];
                [arrOddNum2 addObject:[NSNumber numberWithInteger:decadeNum]];
            }
        }
    }
    
    __block  NSInteger sumOddNumTotal = 0;
    [arrOddNum enumerateObjectsUsingBlock:^(id  _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {
        sumOddNumTotal += [obj integerValue];
    }];
    
    
    __block NSInteger sumOddNum2Total = 0;
    [arrOddNum2 enumerateObjectsUsingBlock:^(id  _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {
        sumOddNum2Total += [obj integerValue];
    }];
    
    __block NSInteger sumEvenNumTotal = 0 ;
    [arrEvenNum enumerateObjectsUsingBlock:^(id  _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {
        sumEvenNumTotal += [obj integerValue];
    }];
    
    
    NSInteger lastNumber = [lastNum integerValue];
    
    NSInteger luhmTotal = lastNumber + sumEvenNumTotal + sumOddNum2Total + sumOddNumTotal;
    
    return (luhmTotal%10 ==0)?YES:NO;
}

//验证手机号的合法性
+(BOOL)isValidateMobile:(NSString *)mobile
{
    //手机号以13， 15，18开头，八个 \d 数字字符
    NSString *phoneRegex = @"^((13[0-9])|(15[^4,\\D])|(18[0,0-9]))\\d{8}$";
    NSPredicate *phoneTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",phoneRegex];
    //    NSLog(@"phoneTest is %@",phoneTest);
    return [phoneTest evaluateWithObject:mobile];
}

/**
 * 验证车牌号
 */
+ (BOOL) checkCarNumber:(NSString *) CarNumber
{
    NSString *bankNum = @"^[\u4e00-\u9fa5]{1}[a-zA-Z]{1}[a-zA-Z_0-9]{4}[a-zA-Z_0-9_\u4e00-\u9fa5]$";
    NSPredicate *pred = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",bankNum];
    BOOL isMatch = [pred evaluateWithObject:CarNumber];
    return isMatch;
}

/**
 * 验证17位车架号
 */
+ (BOOL) checkCheJiaNumber:(NSString *) CheJiaNumber
{
    NSString *bankNum=@"^(\\d{17})$";
    NSPredicate *pred = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",bankNum];
    BOOL isMatch = [pred evaluateWithObject:CheJiaNumber];
    return isMatch;
}

/**
 * 验证只能输入数字和字母
 */
+ (BOOL) checkTeshuZifuNumber:(NSString *) CheJiaNumber
{
    NSString *bankNum=@"^[A-Za-z0-9]+$";
    NSPredicate *pred = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",bankNum];
    BOOL isMatch = [pred evaluateWithObject:CheJiaNumber];
    return isMatch;
}

/**
 * 验证以C开头字符
 */
+ (BOOL) checkCtooNumber:(NSString *) nickNumber{
    NSString *nickNum=@"^C{1}[0-9]+$";
    NSPredicate *pred = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",nickNum];
    BOOL isMatch = [pred evaluateWithObject:nickNumber];
    return isMatch;
}

/**
 * 验证以C开头的18位字符
 */
+ (BOOL) checkCtooNumberTo18:(NSString *) nickNumber
{
    NSString *nickNum=@"^C{1}[0-9]{18}$";
    NSPredicate *pred = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",nickNum];
    BOOL isMatch = [pred evaluateWithObject:nickNumber];
    return isMatch;
}

/**
 * 验证昵称
 */
+ (BOOL) checkNickname:(NSString *) nickname
{
    NSString *nicknameRegex = @"^[\u4e00-\u9fa5]{4,8}$";
    NSPredicate *pred = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",nicknameRegex];
    BOOL isMatch = [pred evaluateWithObject:nickname];
    return isMatch;
}

/**
 * 验证URL
 */
+ (BOOL)checkURL : (NSString *) url
{
    NSString *pattern = @"^[0-9A-Za-z]{1,50}";
    NSPredicate *pred = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", pattern];
    BOOL isMatch = [pred evaluateWithObject:url];
    return isMatch;
}

/**
 * 验证员工号,12位的数字
 */
+ (BOOL)checkEmployeeNumber : (NSString *) number
{
    NSString *pattern = @"^[0-9]{12}";
    
    NSPredicate *pred = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", pattern];
    BOOL isMatch = [pred evaluateWithObject:number];
    return isMatch;
}

/**
 * 验证用户姓名,20位的中文或英文
 */
+ (BOOL)checkUserName : (NSString *) userName
{
    //    NSString *pattern = @"^[A-Za-z0-9]{6,20}+$";
    NSString *pattern = @"^([\u4e00-\u9fa5]+|([a-zA-Z]+\s?)+)$";
    NSPredicate *pred = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", pattern];
    BOOL isMatch = [pred evaluateWithObject:userName];
    return isMatch;
}

/**
 * model转字典
 */
- (NSDictionary *)dictionaryFromModel
{
    unsigned int count = 0;
    
    objc_property_t *properties = class_copyPropertyList([self class], &count);
    NSMutableDictionary *dict = [NSMutableDictionary dictionaryWithCapacity:count];
    
    for (int i = 0; i < count; i++) {
        NSString *key = [NSString stringWithUTF8String:property_getName(properties[i])];
        id value = [self valueForKey:key];
        
        //only add it to dictionary if it is not nil
        if (key && value) {
            if ([value isKindOfClass:[NSString class]]
                || [value isKindOfClass:[NSNumber class]]) {
                // 普通类型的直接变成字典的值
                [dict setObject:value forKey:key];
            }
            else if ([value isKindOfClass:[NSArray class]]
                     || [value isKindOfClass:[NSDictionary class]]) {
                // 数组类型或字典类型
                [dict setObject:[self idFromObject:value] forKey:key];
            }
            else {
                // 如果model里有其他自定义模型，则递归将其转换为字典
                [dict setObject:[value dictionaryFromModel] forKey:key];
            }
        } else if (key && value == nil) {
            // 如果当前对象该值为空，设为nil。在字典中直接加nil会抛异常，需要加NSNull对象
            [dict setObject:[NSNull null] forKey:key];
        }
    }
    
    free(properties);
    return dict;
}

/**
 * 字典 转 model
 */
+ (instancetype)objectWithDictionary:(NSDictionary *)dictionary
{
    id obj = [[self alloc] init];
    
    // 获取所有的成员变量
    unsigned int count;
    Ivar *ivars = class_copyIvarList(self, &count);
    
    for (unsigned int i = 0; i < count; i++)
    {
        Ivar ivar = ivars[i];
        
        // 取出的成员变量，去掉下划线
        NSString *ivarName = [NSString stringWithUTF8String:ivar_getName(ivar)];
        NSString *key = [ivarName substringFromIndex:1];
        
        id value = dictionary[key];
        
        // 当这个值为空时，判断一下是否执行了replacedKeyFromPropertyName协议，如果执行了替换原来的key查值
        if (!value)
        {
            if ([self respondsToSelector:@selector(replacedKeyFromPropertyName)])
            {
                NSString *replaceKey = [self replacedKeyFromPropertyName][key];
                value = dictionary[replaceKey];
            }
        }
        
        // 字典嵌套字典
        if ([value isKindOfClass:[NSDictionary class]])
        {
            NSString *type = [NSString stringWithUTF8String:ivar_getTypeEncoding(ivar)];
            NSRange range = [type rangeOfString:@"\""];
            type = [type substringFromIndex:range.location + range.length];
            range = [type rangeOfString:@"\""];
            type = [type substringToIndex:range.location];
            Class modelClass = NSClassFromString(type);
            
            if (modelClass)
            {
                value = [modelClass objectWithDictionary:value];
            }
        }
        
        // 字典嵌套数组
        if ([value isKindOfClass:[NSArray class]])
        {
            if ([self respondsToSelector:@selector(objectClassInArray)])
            {
                NSMutableArray *models = [NSMutableArray array];
                
                NSString *type = [self objectClassInArray][key];
                Class classModel = NSClassFromString(type);
                for (NSDictionary *dict in value)
                {
                    id model = [classModel objectWithDictionary:dict];
                    [models addObject:model];
                }
                value = models;
            }
        }
        if (value)
        {
            [obj setValue:value forKey:key];
        }
    }
    
    // 释放ivars
    free(ivars);
    
    return obj;
}