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go-qrcode
Tom Harwood cf115fc637 Add Travis CI config file. 11 年之前
bitset fe00d3979f += bitset comments 12 年之前
reedsolomon 3484a698f5 Switch to github import paths. 11 年之前
.gitignore 4942deac2a Add .gitignore 12 年之前
.travis.yml cf115fc637 Add Travis CI config file. 11 年之前
LICENSE 6b7676c4bd Initial commit 12 年之前
README.md cbd4f54dad Update README.md 11 年之前
encoder.go 3484a698f5 Switch to github import paths. 11 年之前
encoder_test.go 3484a698f5 Switch to github import paths. 11 年之前
example_test.go fe00d3979f += bitset comments 12 年之前
qrcode.go 3484a698f5 Switch to github import paths. 11 年之前
qrcode_decode_test.go 4d19c4c411 Fix symbols consisting of a single block not having their remainder bits applied. 12 年之前
qrcode_test.go f7be08535c Test data type optimisation close to the maximum encodable limit of 2953 bytes. 12 年之前
regular_symbol.go 3484a698f5 Switch to github import paths. 11 年之前
regular_symbol_test.go 3484a698f5 Switch to github import paths. 11 年之前
symbol.go 4d19c4c411 Fix symbols consisting of a single block not having their remainder bits applied. 12 年之前
symbol_test.go 4802c0ec0c golint fixes 12 年之前
version.go 3484a698f5 Switch to github import paths. 11 年之前
version_test.go 3484a698f5 Switch to github import paths. 11 年之前

README.md

go-qrcode

Package qrcode implements a QR Code encoder.

A QR Code is a matrix (two-dimensional) barcode. Arbitrary content may be encoded, with URLs being a popular choice :)

Each QR Code contains error recovery information to aid reading damaged or obscured codes. There are four levels of error recovery: Low, medium, high and highest. QR Codes with a higher recovery level are more robust to damage, at the cost of being physically larger.

Usage

import qrcode "skip.org/go/qrcode"

  • Create a PNG image:
    var png []byte
png, err := qrcode.Encode("https://example.org", qrcode.Medium, 256)
  • Create a PNG image and write to a file: 
    err := qrcode.WriteFile("https://example.org", qrcode.Medium, 256, "qr.png")

Both examples use the qrcode.Medium error Recovery Level and create a 256x256 pixel, black on white QR Code.

The maximum capacity of a QR Code varies according to the content encoded and
the error recovery level. The maximum capacity is 2,953 bytes, 4,296
alphanumeric characters, 7,089 numeric digits, or a combination of these.

Documentation

Demoapp

http://go-qrcode.appspot.com

Links