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                            [TOC]


## 捕獲攝像頭

<details>
<summary>index.html</summary>

```
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
</head>
<body>
    <div>
        <button id="start">開始錄制</button>
        <button id="stop">停止錄制</button>
    </div>
    <div>
        <video autoplay controls id="stream"></video>
    </div>
    <script>
        // 只獲取視頻
        let constraints = {audio: false, video: true}; 
        let startBtn = document.getElementById('start')
        let stopBtn = document.getElementById('stop')
        let video = document.getElementById('stream')
        startBtn.onclick = function() {
            navigator.mediaDevices.getUserMedia(constraints, function(stream) {
                video.srcObject = stream;
                window.stream = stream;
            }, function(err) {
                console.log(err)
            })
        }
        stopBtn.onclick = function() {
            video.pause();
        }
    </script>
</body>
</html>
```
</details>
<br/>


                    
                
        
                
            
        
                
    
                
    
                
        
                
    
                

                







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