IOS, a detailed explanation of the example of simple local json format file analysis

{ 
  "data":[{ 
   
      "name"  : "", 
      "content" : "", 
      "images" :[ 
            { 
            "imageurl" : "/2017/0702/" 
            }, 
            { 
            "imageurl" : "/onevcat/Kingfisher/master/images/" 
            }, 
            { 
            "imageurl" : "/2015/0121/" 
            } 
           ] 
  }, 
  { 
      "name"  : "", 
      "content" : "", 
      "images" :[ 
            { 
            "imageurl" : "/2017/0702/" 
            }, 
            { 
            "imageurl" : "/2017/0702/" 
            }, 
            { 
            "imageurl" : "/2017/0702/" 
            } 
            ] 
  }, 
  { 
      "name"  : "", 
      "content" : "", 
      "images" :[ 
            { 
            "imageurl" : "/2017/0702/" 
            }, 
            { 
            "imageurl" : "/2017/0703/" 
            }, 
            { 
            "imageurl" : "/2017/0702/" 
            } 
            ] 
   } 
  ] 
} 

NSError *error; 
NSString *_ljPath = [[NSBundle mainBundle]pathForResource:@"ljweibo" ofType:@"json"]; 
NSDictionary *_ljDic = [NSJSONSerialization JSONObjectWithData:[NSData dataWithContentsOfFile:_ljPath] options:NSJSONReadingMutableLeaves error:&error]; 
//ArrayNSArray *_ljAllArray = [_ljDic objectForKey:@"data"]; 
 
for (NSInteger a = 0; a < _ljAllArray.count; a++) 
{ 
  ljWeiboInfo *_info = [[ljWeiboInfo alloc]init]; 
  _info.ljContentStr = [_ljAllArray[a] objectForKey:@"content"]; 
  NSArray *_ljArraylj = [_ljAllArray[a] objectForKey:@"images"]; 
  //Get all pictures  NSMutableArray *_ljMuArray = [[NSMutableArray alloc]init]; 
  for (NSInteger i = 0; i < _ljArraylj.count; i++) { 
    [_ljMuArray addObject:[_ljArraylj[i] objectForKey:@"imageurl"]]; 
  } 
  _info.ljImageUrlArray = _ljMuArray; 
   
  [ addObject:_info]; 
}