<html>
<meta charset="utf-8" />
<title>WebSocket Test</title>
<body>
<div class="container">
    <div class="panel panel-default">
        <div class="panel-heading"> 分段读取文件：</div>
        <div class="panel-body">
            <input type="file" id="fileId" /><br />
            <input type="button" value="中止" onclick="stop();" /> <br />
            <input type="button" value="继续" onclick="goon();" />
            <progress id="progressOne" style="width:400px;" max="100" value="0"></progr