<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Highstock Example</title>
<script type="text/javascript" src="http://cdn.hcharts.cn/jquery/jquery-1.8.3.min.js"></script>
<style type="text/css">
${demo.css}
</style>
<script type="text/javascript">
$(function () {
Highcharts.setOptions({
global : {
useUTC : false
}
});
// Create the chart
$('#container').highcharts('StockChart', {
chart : {
events : {
load : function () {
// set up the updating of the chart each second
var series = this.series[0];
setInterval(function () {
var x = (new Date()).getTime(), // current time
y = Math.round(Math.random() * 100);
series.addPoint([x, y], true, true);
}, 1000);
}
}
},
rangeSelector: {
buttons: [{
count: 1,
type: 'minute',
text: '1M'
}, {
count: 5,
type: 'minute',
text: '5M'
}, {
type: 'all',
text: 'All'
}],
inputEnabled: false,
selected: 0
},
title : {
text : 'Live random data'
},
exporting: {
enabled: false
},
series : [{
name : 'Random data',
data : (function () {
// generate an array of random data
var data = [], time = (new Date()).getTime(), i;
for (i = -999; i <= 0; i += 1) {
data.push([
time + i * 1000,
Math.round(Math.random() * 100)
]);
}
return data;
}())
}]
});
});
</script>
</head>
<body>
<script src="http://cdn.hcharts.cn/highstock/highstock.js"></script>
<script src="http://cdn.hcharts.cn/highstock/modules/exporting.js"></script>
<div id="container" style="height: 400px; min-width: 310px"></div>
</body>
</html>
请问以上代码，series里面的data到底起了什么作用，因为setInterval每秒都在产生新的点啊
