把请求的数据存放到Model中，（数组和和单条数据）

1、Model存放到数组中

#import <Foundation/Foundation.h>
@interface VideoPinglunModel : NSObject
@property (nonatomic , assign)NSInteger commentUserid;
@property (nonatomic , assign)NSInteger commentCtime;
@property (nonatomic , copy)NSString *commentContent;
@property (nonatomic , copy)NSString *commentAuthor;
- (instancetype)initWithDictionary:(NSDictionary *)dic;
+ (NSMutableArray *)modelSformDics:(NSArray *)arr;
@end

- (void)setValue:(id)value forUndefinedKey:(NSString *)key
{
//    if ([key isEqualToString:@"id"]) {
//        self.idM = value;
//    }
}
- (id)valueForUndefinedKey:(NSString *)key
{
    return nil;
}
- (instancetype)initWithDictionary:(NSDictionary *)dic
{
    self = [super init];
    if (self) {
        [self setValuesForKeysWithDictionary:dic];
    }
    return self;
}
+ (NSMutableArray *)modelSformDics:(NSArray *)arr
{
    NSMutableArray *modelArr = [NSMutableArray array];
    for (NSDictionary *dic in arr) {
        VideoPinglunModel *model = [[self alloc] initWithDictionary:dic];
        [modelArr addObject:model];
    }
    return modelArr;
}

使用方法；

//从解析的数组中查出需要的数据，存放到类的字典里面

        NSMutableDictionary *dic = [responseObject objectForKey:@"data"];

        playingModel *model  = [[playingModel alloc] initWithDictionary:dic];

2、Model存放到中字典中（数据存到Model中）

#import <Foundation/Foundation.h>
@interface playingModel : NSObject
@property (nonatomic , copy)NSString *t;   //标题吧 。。。
@property (nonatomic , copy)NSString *tag;
@property (nonatomic , copy)NSString *desc;
@property (nonatomic , copy)NSString *picpath;   //图片地址
@property (nonatomic , copy)NSString *bigpicpath;
@property (nonatomic , assign)NSInteger vtime;
@property (nonatomic , copy)NSString *f;    //视频播放地址
- (instancetype)initWithDictionary:(NSDictionary *)dic;
+ (instancetype)modelSformDics:(NSDictionary *)dic;
@end

#import "playingModel.h"
@implementation playingModel
- (void)setValue:(id)value forUndefinedKey:(NSString *)key
{
    
}
- (id)valueForUndefinedKey:(NSString *)key
{
    return nil;
}
- (instancetype)initWithDictionary:(NSDictionary *)dic
{
    self = [super init];
    if (self) {
        [self setValuesForKeysWithDictionary:dic];
    }
    return self;
}
+ (instancetype)modelSformDics:(NSDictionary *)dic;
{
    playingModel *model = [[self alloc] initWithDictionary:dic];
    return model;
}
@end

/***************

 ****记住了*****

 **************/

            //判断这个对象不为空的时候不为空的时候

            if (![[[responseObject objectForKey:@"data"] objectForKey:@"list"] isKindOfClass:[NSNull class]]) {

                NSMutableArray *arr = [[responseObject objectForKey:@"data"] objectForKey:@"list"];

                self.arrayComment = [VideoPinglunModel modelSformDics:arr];

            }

//字典编辑
+(id)getAUsefulInstanceWith:(NSDictionary *)attributes key:(NSString *)key{
    
    if ([[attributes objectForKey:key]
         isKindOfClass:[NSNumber class]] ||
        [[attributes objectForKey:key] isKindOfClass:[NSString class]] ||
        [[attributes objectForKey:key] isKindOfClass:[NSObject class]] || ![[attributes objectForKey:key] isKindOfClass:[NSNull class]])
    {
        return [NSMutableString stringWithFormat:@"%@", [attributes objectForKey:key]];
    }
    else
    {
        return @"";
        NSLog(@"字段值Id读取异常(字段不存在或者值为空)");
    }
}