# h5中原生js选择本地音乐播放
先放一个原生js的，可以选择本地电脑的音乐，然后进行播放
<!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>audioplay</title>
</head>
<body>
<input type="file" id="file" accept="audio/x-wav,audio/mpeg" />
</body>
<script>
var context = null;
document.getElementById('file').addEventListener('change', function(e) {
var read = new FileReader();
context = new (window.AudioContext || window.webkitAudioContext)();
read.onload = function() {
// 将arrayBuffer转成audioBuffer
context.decodeAudioData(this.result, function(buffer) {
playSound(buffer);
}, function() {
console.log('error');
});
};
console.log(this.files[0]);
// 利用filereader将file转成arraybuffer格式
read.readAsArrayBuffer(this.files[0]);
});
// 播放音频
function playSound(buffer) {
var source = context.createBufferSource();
// 设置数据
source.buffer = buffer;
source.loop = true; //循环播放
// connect到扬声器
source.connect(context.destination);
source.start();
}
</script>
</html>
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