Go生成读取二维码(skip2/go-qrcode和boombuler/barcode)
Go生成读取二维码(skip2/go-qrcode和boombuler/barcode)
QR Code码，是由Denso公司于1994年9月研制的一种矩阵二维码符号，它具有一维条码及其它二维条码所具有的信息容量大、可靠性高、可表示汉字及图象多种文字信息、保密防伪性强等优点。
wiki：
QR code (abbreviated from Quick Response Code) is the trademark for a type of matrix barcode (or two-dimensional barcode) first designed for the automotive industry in Japan. A barcode is a machine-readable optical label that contains information about the item to which it is attached. A QR code uses four standardized encoding modes (numeric, alphanumeric, byte/binary, and kanji) to efficiently store data; extensions may also be used
###skip2/go-qrcode生成二维码
github地址：https://github.com/skip2/go-qrcode
star 211
获取：
go get skip2/go-qrcode
package main
import qrcode "github.com/skip2/go-qrcode"
import "fmt"
func main() {
err := qrcode.WriteFile("http://blog.csdn.net/wangshubo1989", qrcode.Medium, 256, "qr.png")
if err != nil {
fmt.Println("write error")
}
}
###boombuler/barcode生成二维码
github地址：https://github.com/boombuler/barcode
star 300
获取：
go get github.com/boombuler/barcode
package main
import (
"image/png"
"os"
"github.com/boombuler/barcode"
"github.com/boombuler/barcode/qr"
)
func main() {
qrCode, _ := qr.Encode("http://blog.csdn.net/wangshubo1989", qr.M, qr.Auto)
qrCode, _ = barcode.Scale(qrCode, 256, 256)
file, _ := os.Create("qr2.png")
defer file.Close()
png.Encode(file, qrCode)
}###tuotoo/qrcode识别二维码
github地址：https://github.com/tuotoo/qrcode
star 13
获取：
go get github.com/tuotoo/qrcode
读取二维码图片：
package main
import (
"fmt"
"os"
"github.com/tuotoo/qrcode"
)
func main() {
fi, err := os.Open("qrcode.png")
if err != nil {
fmt.Println(err.Error())
return
}
defer fi.Close()
qrmatrix, err := qrcode.Decode(fi)
if err != nil {
fmt.Println(err.Error())
return
}
fmt.Println(qrmatrix.Content)
}