//文件路径

NSBundle *bundle = [NSBundle bundleForClass:[PopQuestionUIView class]];

NSURL *url = [bundle URLForResource:@"Resources" withExtension:@"bundle"];

NSBundle *resBundle = [NSBundle bundleWithURL:url];

NSString *filePath = [resBundle pathForResource:@"popQuestionLocalData" ofType:@"txt"];

// NSData类方法读取数据

NSData *data = [NSData dataWithContentsOfFile:filePath];

NSString *jsonString = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];

NSLog(@"NSData类方法读取的内容是：%@", jsonString);

NSData *jsonData = [jsonString dataUsingEncoding:NSUTF8StringEncoding];

NSError *err;

NSDictionary *dic = [NSJSONSerialization JSONObjectWithData:jsonData

                                                        options:NSJSONReadingMutableContainers

                                                          error:&err];