树莓派：4. 树莓派搭建美观的物联网温度服务器

var timeTicket; // 路径配置 require.config({ paths:{ 'echarts' : './echarts', 'echarts/chart/bar' : './echarts', 'echarts/chart/line' : './echarts', 'echarts/chart/gauge' : './echarts' }}); // 使用 require([ 'echarts', 'echarts/chart/bar', // 使用柱状图就加载bar模块，按需加载 'echarts/chart/line', 'echarts/chart/gauge'], function (ec) { var myChart2 = ec.init(document.getElementById('main2')); var option2 = { tooltip : {formatter: '{a}
{b} : {c}%'}, series : [{ name:'物联网温度', type:'gauge', detail : {formatter:'{value}摄氏度'}, data:[{value: 0, name: ''}] }]}; clearInterval(timeTicket); timeTicket = setInterval(function(){ var d = window.frames['hellocgi'].document; var str = d.getElementsByTagName('h1')[0].innerHTML; option2.series[0].data[0].value = str; //option2.series[0].data[0].value = (Math.random() * 100).toFixed(2) - 0; myChart2.setOption(option2, true); }, 2000); // 为echarts对象加载数据 myChart2.setOption(option2); } );