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<html>
<head>
<meta charset="utf-8">
<title>HTML5 调用手机摄像头</title>
<style type="text/css">
</style>
<script>
window.addEventListener("DOMContentLoaded", function() {
var canvas = document.getElementById("canvas"),
context = canvas.getContext("2d"),
video = document.getElementById("video"),
videoObj = { "video": true },
errBack = function(error) {