
    </head>
    <body>
        <style>
            body {
                background: #000;
            }
        </style>
        <div id="main"></div>

        <script>

            // Schema:
            // date,AQIindex,PM2.5,PM10,CO,NO2,SO2
            var schema = [
                {name: 'date', index: 0, text: '日'},
                {name: 'AQIindex', index: 1, text: 'AQI指数'},
                {name: 'PM25', index: 2, text: 'PM2.5'},
                {name: 'PM10', index: 3, text: 'PM10'},
     