NPM：
# npm install qrcode.react
import React from 'react';
import QRCode from 'qrcode.react'
React.render(<QRCode value="http://facebook.github.io/react/" />,mountNode
);
| prop | type |
|---|---|
| value | string |
| renderAs | string (‘canvas’ ‘svg’) |
| size | number |
| bgColor | string (CSS color) |
| fgColor | string (CSS color) |
| level | string (‘L’ ‘M’ ‘Q’ ‘H’) |
| includeMargin | boolean |
原文：https://www.npmjs.com/package/qrcode.react#available-props