利用如下方法獲取到后臺傳過來的多條數據AFHTTPRequestOperationManager*manager=[AFHTTPRequestOperationManagermanager];[managerGET:@"http://example.com/resources.json"parameters:nilsuccess:^(AFHTTPRequestOperation*operation,idresponseObject){NSLog(@"JSON:%@",responseObject);}failure:^(AFHTTPRequestOperation*operation,NSError*error){NSLog(@"Error:%@",error);}];1.怎樣利用AFNetworking將responseObject緩存起來2.緩存后如何查詢？3.如果要刪掉某幾項數據怎么做？求大神給點democode感謝。。。