漏刻有时数据可视化Echarts组件开发(17)：环图显示设备状态正常故障的解决方案

var num = 0;
var cor='';
var sta ='';
if (num == 0){
    cor = '#e2e2e2';
    var sta ='异常';
}else{
    cor = '#FF7722';
    var sta ='正常';
}

var option = {
    tooltip: {
        trigger: 'item'
    },
    series: [
        {
            name: '访问来源',
            type: 'pie',
            radius: ['40%', '70%'],
            avoidLabelOverlap: false,
            itemStyle: {
                color:cor,
                borderRadius: 10,
                borderColor: '#fff',
                borderWidth: 2
            },
            label: {
                show: true,
                position: 'center'
            },
            emphasis: {
                label: {
                    show: true,
                    fontSize: '40',
                    fontWeight: 'bold'
                }
            },
            labelLine: {
                show: false
            },
            data: [
                {value: 1, name: sta}
            ]
        }
    ]
};