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49 lines
774 B
Markdown
49 lines
774 B
Markdown
# Api
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### QrcodeDecoder()
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通过 `new` 关键字生成处理对象。
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```javascript
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var qr = new QrcodeDecoder();
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```
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#### decodeFromImage(img, options)
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解析页面中的图片二维码。
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```javascript
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qr.decodeFromImage(img).then((res) => {
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console.log(res);
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});
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```
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[Demo](./demo/image.html)
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#### decodeFromVideo(videoElem, options)
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解析页面中的视频中的二维码。
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```javascript
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qr.decodeFromVideo(videoElement).then((res) => {
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console.log(res);
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});
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```
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[Demo](./demo/video.html)
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#### decodeFromCamera(videoElem, options)
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通过获取摄像头视频来扫描解析二维码。
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```javascript
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qr.decodeFromCamera(videoElem).then((res) => {
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console.log(res);
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});
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```
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[Demo](./demo/camera.html)
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#### stop()
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停止当前视频捕获。 |