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[feat] qr decode
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‎README.md‎

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@@ -56,4 +56,8 @@ Test-Driven development
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- go-app-example
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pwa
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build pwa program
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- qrcode-decode
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decode qr img

‎qrcode-decode/.gitignore‎

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qrcode-decode
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*.jpg
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*.jpeg
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*.png
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.idea
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.vscode
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go.sum

‎qrcode-decode/.pre-commit-config.yaml‎

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repos:
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- repo: https://github.com/thlorenz/doctoc
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rev: v1.4.0
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hooks:
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- id: doctoc
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exclude: ^vendor/
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- repo: git://github.com/dnephin/pre-commit-golang
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rev: master
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hooks:
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- id: go-fmt
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exclude: ^vendor/
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- id: go-imports
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exclude: ^vendor/

‎qrcode-decode/README.md‎

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<!-- START doctoc generated TOC please keep comment here to allow auto update -->
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<!-- DON'T EDIT THIS SECTION, INSTEAD RE-RUN doctoc TO UPDATE -->
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**Table of Contents** *generated with [DocToc](https://github.com/thlorenz/doctoc)*
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- [qrcode-decode](#qrcode-decode)
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- [使用](#%E4%BD%BF%E7%94%A8)
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- [致谢](#%E8%87%B4%E8%B0%A2)
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<!-- END doctoc generated TOC please keep comment here to allow auto update -->
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### qrcode-decode
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二维码识别工具
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### 使用
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```sh
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# ronething @ ashings-macbook-pro in ~/Documents/qrcode-decode on git:master x [17:17:17]
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$ ./qrcode-decode -h
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qrcode-decode tool
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Usage: qrcode [-h help]
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Options:
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-h 帮助
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-p string
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图片文件路径 (default "./qrcode.png")
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# ronething @ ashings-macbook-pro in ~/Documents/qrcode-decode on git:master x [17:17:21]
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$ ./qrcode-decode -p ./qrcode.jpeg
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2021/02/10 17:17:27 识别链接为 https://support.weixin.qq.com/cgi-bin/mmsupport-bin/showredpacket?receiveuri=xCvTj3TtrzF&check_type=1#wechat_redirect
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```
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### 致谢
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- github.com/tuotoo/qrcode

‎qrcode-decode/go.mod‎

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module qrcode-decode
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go 1.13
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require github.com/tuotoo/qrcode v0.0.0-20190222102259-ac9c44189bf2 // indirect

‎qrcode-decode/main.go‎

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package main
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import (
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"flag"
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"fmt"
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"log"
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"os"
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"github.com/tuotoo/qrcode"
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)
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var (
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filePath string // 配置文件路径
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help bool // 帮助
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)
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func usage() {
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fmt.Fprintf(os.Stdout, `qrcode-decode tool
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Usage: qrcode [-h help]
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Options:
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`)
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flag.PrintDefaults()
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}
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func main() {
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flag.StringVar(&filePath, "p", "./qrcode.png", "图片文件路径")
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flag.BoolVar(&help, "h", false, "帮助")
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flag.Usage = usage
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flag.Parse()
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if help {
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usage()
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return
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}
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file, err := os.Open(filePath)
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if err != nil {
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log.Printf("打开文件 %s 失败, %v\n", filePath, err.Error())
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return
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}
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defer file.Close()
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qrMatrix, err := qrcode.Decode(file)
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if err != nil {
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log.Println("识别二维码失败", err.Error())
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return
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}
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log.Printf("识别链接为 %s\n", qrMatrix.Content)
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}

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