可以识别二维的条形码。读入条形码图像之后即可处理成相应的数字。但是对图像存储位置有要求，所以请按照程序前面的存储位置放置您的二维图像-Can identify the two-dimensional barcode. Reads the barcode image can be processed into a corresponding digital. But the image storage location requirements, so please be placed in ac