gradeecharts 柱状配置项内容和展示

      option = {
    title: {
        text: 'Awesome Chart'
    },
    xAxis: {
        type: 'category',
        data: ['数学','语文']
    },
    yAxis: {
        
    },
    
    
    series: [
    {
        type: 'bar',
        data: [30,40],
        // barGap: '-100%'
    }
    ]
};