option = {
    backgroundColor: '#FFF',
    tooltip : {
        formatter: "{a} <br/>{b} : {c}%"
    },
    toolbox: {
        feature: {
            restore: {},
            saveAsImage: {}
        }
    },
    dataset : {
        source : [[10], [30]]
    },
    series: [
        {
            name: '业务指标',
            type: 'gauge',
            detail: {formatter:'{value}%'},
            //data: [{value: 50, name: '完成率'}]
        }
    ]
};

setInterval(function () {
    //option.series[0].data[0].value = (Math.random() * 100).toFixed(2) - 0;
    
    //var ttt = myChart.getOption();
    
    var ttt = {
         dataset : {
            source : [[15], [67]]
        }
    }
    
    // var ttt = {
    //     backgroundColor: '#FFC',
    // }
    
    myChart.setOption(ttt);
},2000);