南阳做网站多少费用/黄山seo排名优化技术

1、下载

# 创建目录
# 进入目录
# 执行 go mod init xxx 命令（即：在当前目录初始化创建一个模块）# 下载gozxing
go get github.com/makiuchi-d/gozxing

2、生成二维码

package mainimport ("image/png""os""github.com/makiuchi-d/gozxing""github.com/makiuchi-d/gozxing/oned""github.com/makiuchi-d/gozxing/qrcode"
)func main() {// writeBarcode()writeQrcode()
}// 条形码
func writeBarcode() {// Generate a barcode image (*BitMatrix)writer := oned.NewCode128Writer()img, _ := writer.Encode("content: bar code", gozxing.BarcodeFormat_CODE_128, 100, 50, nil)file, _ := os.Create("barcode.png")defer file.Close()png.Encode(file, img)
}// 二维码
func writeQrcode() {// Generate a qrcode image (*BitMatrix)writer := qrcode.NewQRCodeWriter()img, _ := writer.Encode("content: qr code", gozxing.BarcodeFormat_QR_CODE, 100, 100, nil)file, _ := os.Create("qrcode.png")defer file.Close()png.Encode(file, img)
}

3、识别二维码

package mainimport ("fmt""image"_ "image/png""os""github.com/makiuchi-d/gozxing""github.com/makiuchi-d/gozxing/oned""github.com/makiuchi-d/gozxing/qrcode"
)func main() {// readBarcode()readQrcode()
}// 条形码
func readBarcode() {// open and decode image filefile, _ := os.Open("barcode.png")img, _, _ := image.Decode(file)// prepare BinaryBitmapbmp, _ := gozxing.NewBinaryBitmapFromImage(img)// decode imagereader := oned.NewCode128Reader()result, _ := reader.Decode(bmp, nil)fmt.Println(result)
}// 二维码
func readQrcode() {// open and decode image filefile, _ := os.Open("qrcode.png")img, _, _ := image.Decode(file)// prepare BinaryBitmapbmp, _ := gozxing.NewBinaryBitmapFromImage(img)// decode imagereader := qrcode.NewQRCodeReader()result, _ := reader.Decode(bmp, nil)fmt.Println(result)
}

详见：

https://pkg.go.dev/search?q=qrcode

GitHub - makiuchi-d/gozxing: Port of ZXing (https://github.com/zxing/zxing) core to pure Go.