HTML5调用摄像头和麦克风Demo
<!DOCTYPE html>
<html>
<head>
<meta charset="utf8"/>
<title>打开摄像头测试</title>
</head>
<body>
<h1>摄像头测试<h1>
<div id="app">
<video autoplay controls id="video"></video>
</div>
<button id="cameraBtn">打开摄像头测试</button>
</body>
</html>
<script type="text/javascript">
document.querySelector('#cameraBtn').onclick = function() {
let constraints ={ audio: true, video: true };
navigator.mediaDevices.getUserMedia(constraints).then(function(stream) {
document.querySelector('#video').srcObject = stream
}).catch(function(err) {
console.log(err.name+":"+err.message);
});
}
</script>