[manager POST:urlStr parameters:data constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {
    NSString *path=[[NSBundle mainBundle] pathForResource:@"image.png" ofType:@""];
    [formData appendPartWithFileURL:[NSURL URLWithString:path] name:@"image" fileName:@"image.png" mimeType:@"image/jpg" error:nil];//这一句直接把post2种需要的请求头等信息都封装了，有兴趣的可以去了解一个具体封装的是什么信息
//mimeType 共有5种 image/png image/jpg text/json text/html video/mp4
  } success:^(AFHTTPRequestOperation *operation, id responseObject) {
    NSLog(@"resposeObject %@",responseObject);
  } failure:^(AFHTTPRequestOperation *operation, NSError *error) {
    NSLog(@"error %@",error);
  }];

NSMutableArray * dataArray =[responseDictionary valueForKeyPath:@"data.list_dic.list"];
    NSMutableArray * dataArray =responseDictionary[@"data"][@"list_dic"][@"list"];