摘要：
1.在- (IBAction)scanPressed:(id)sender方法中：ZXingWidgetController *widController = [[ZXingWidgetControlleralloc] initWithDelegate:selfshowCancel:YESOneDMode:YES];MultiFormatOneDReader *OneReaders=[[MultiFormatOneDReaderalloc]init];QRCodeReader* qrcodeReader = [[QRCodeReaderalloc] init];NSSet *readers = 阅读全文
